Zagg Limitless User manual

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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ZAGG
Limitless Universal
Bluetooth Keyboard
Revision History
R
evision Date Notes
R
eleased By
01 12/24/2014 Initial Release k.ha
r
wa
r
d
02 03/25/2015 Updated Requirements k.harward
03 04/01/2015 Updated Requirements k.Ha
r
wa
r
d
04 06/15/2015 Updated Requirements O. Ca
r
lson

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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TableofContents
1 General Specifications ......................................................................................... 4
2 Mechanical Specification..................................................................................... 5
2.1 Characteristics of Material .......................................................................... 5
2.2 Packed - Including Packing.............................................................................. 6
2.3 Detachability of Cable Pull Out........................................................................ 6
2.4 Key Board Specification............................................................................... 6
2.4.1 Life Test.......................................................................................................... 6
2.4.3 Keyboard Height..................................................................................... 7
2.4.4 Max Keycap Depressing Force .......................................................... 7
2.4.5 Keycap Strength..................................................................................... 7
2.4.6 Keycap Spacing And Alignment........................................................ 7
2.4.7 Key In Test Spec On The 4 Corners Of The Key Cap................... 8
2.5 Characteristics of Switches........................................................................ 9
2.5.1 Slide Switch............................................................................................. 9
2.5.2 Tact Switch.............................................................................................. 9
2.5.3 Sleep Magnet Function......................................................................... 9
2.6 Characteristics of Cradle............................................................................. 9
2.6.1 Cradle Dimensions................................................................................ 9
2.6.2 Cradle Material........................................................................................ 9
3 Electrical Specification....................................................................................... 10
3.1 Electrical Characteristics........................................................................... 10
1.1.1 Feature:.................................................................................................... 10
1.2 Power Rating................................................................................................. 10
1.3 LED Indicator behavior............................................................................... 11
3.2 RF Specifications......................................................................................... 13
3.3 Bluetooth Module Block Diagram............................................................ 14
3.4 Sleep mode.................................................................................................... 14
3.5 Keyboard layout........................................................................................... 14
3.6 Fn Combination Key Function Descriptions........................................ 15
3.7 Bluetooth 3.0 9 inch Keyboard Key Matrix for Apple......................... 17
3.8 Schematic Circuit......................................................................................... 18
3.9 Pseudo N-Key Rollover Capability.......................................................... 19
3.10 Free From Illegal Ghost key...................................................................... 19
3.11 Compatibility................................................................................................. 19
3.12 Battery Specification................................................................................... 19

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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3.14.1 Charging Specification........................................................................... 19
3.14.2 Battery Capacity....................................................................................... 19
3.14.3 Short time charging of Battery............................................................. 19
3.14.4 Charging Profile of Battery.................................................................... 19
3.14.5 Standby and Active time of Battery.................................................... 19
3.14.6 Under Voltage and Over Voltage Protection in Battery................. 20
3.15 Keyboard Module......................................................................................... 20
3.16 Key Functional Test..................................................................................... 20
Refer to Key Layout and to use Bluetooth test program & fixture...................... 20
3.17 Bluetooth RF Power & Frequency Test.................................................. 20
RF Power Range: -35dBm ~ -5 dBm ...................................................................... 20
3.17.1 HID-Master / Slaves Roles ..................................................................... 20
3.17.2 HID Discovery ........................................................................................... 20
3.17.3 HID-Connectivity...................................................................................... 20
3.17.4 Disconnection / Reconnection............................................................. 20
3.17.5 Bluetooth Keyboard – Out of Range / Idle......................................... 20
3.18 EMI Test.......................................................................................................... 21
3.19 ESD TEST....................................................................................................... 21
3.20 EFT Test.......................................................................................................... 21
4 Environmental and Reliability Specifications.............................................. 22
4.1 Acoustic Noise................................................................................................... 22
4.2 Temperature and Humidity Test............................................................... 23
4.3 Heat Treatment Impact Test...................................................................... 23
4.4 Vibration Test................................................................................................ 23
4.5 Bare Unit Drop Test..................................................................................... 24
4.6 Packaged Box Drop Test ........................................................................... 24
4.7 Life Test.......................................................................................................... 25
4.8 UV Test............................................................................................................ 25
4.9 Spillage Test.................................................................................................. 26
4.10 Endurance Test............................................................................................. 27
4.11 Physical / Software compatibility check................................................ 27
4.12 PLP – Product Liability Program ............................................................ 27
4.13 Abrasion Test – Legend (1X key silk-screen printing)....................... 27
4.14 Abrasion Test - Logo/ Icon........................................................................ 28
4.15 Abrasion Test – Painting (Outlook parts printing).............................. 28
4.16 Chemical Resistance Test......................................................................... 28
4.17 Adhesion Test............................................................................................... 28
4.18 Keycap Texture Endurance Test.............................................................. 28
4.19 Compression Test-Type 1A....................................................................... 29
4.20 Corrugated Box (Carton) Compression Test........................................ 29
4.21 Compliance.................................................................................................... 29
4.22 Safety Standard............................................................................................ 29
4.23 Environment Specification Items ............................................................ 30
4.24 Appearance Specification.......................................................................... 30

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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5 Patent ...................................................................................................................... 30
7 Certifications............................................................................................................. 31
7.1 UL..................................................................................................................... 31
7.2 CE Marking..................................................................................................... 31
7.3 FCC .................................................................................................................. 32
7.4 BC..................................................................................................................... 32
8 Keyboard layouts for different languages................................................................. 32
9 Acronyms / Definitions............................................................................................. 33
1 General Specifications
This specification is applied to the Bluetooth wireless keyboard for pairing with multiple
devices.
General Product Information
Product Type Limitless Universal
Connection Type Bluetooth Wireless
Keypad Features Slim
Wireless Protocol Bluetooth 3.0
Wireless Range 10M
Software Support (at release) Apple iOS, Android, Windows
OS Support (at release) iOS 6, 7, and 8
Indicator Lights (LED) Under Caps Lock, above Power (for Pairing too)
Backlight Yes
Battery Details 450mAh, 3.7V
Battery Life 730 days one hour per day use
Power Charge Micro USB cable ( TPE coated cable)
Power On Function Power key on key frame will power on
Cradle & device(s) angle Fixed position cradle with spacing and angle to fit two
devices at 135 degrees from face of keyboard to
device face.
Cradle length, width & depth Cradle is to be a minimum of 275 mm in length, 13
mm wide, and 11 mm in depth.
Product Dimensions

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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Product component Width Depth/
Length Height Weight
Keyboard 300 mm 202.5 13 mm (back)
8 mm (front,
bezel)
533 grams
2 Mechanical Specification
2.1 Characteristics of Material

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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Parts Material Color Texture
Cover, Bottom, HF-3201GS
PC White/Black Bottom side: See CMF
Bezel, Keys, HF-3201GS PC White/Black MT 11010 Texture
Top Cover, PC White/Black MT 11010 Texture on the perimeter with a
High gloss finish around the keys
Small Bottom Cover PC White/Black High Gloss Finish
Rubber Foot Rubber
50A Black
Cradle PC Black Rubberized Paint
2.2 Packed - Including Packing
Product Dimensions Tolerance: +/- 3 mm
Package Spec. Qty Width Length Height Weight
Gift box with handle
1 19 cm 30 cm 2.8 cm 693 grams
Carton (Inner)
5 30.5 cm 15 cm 21 cm 3.75 KGS
Carton (Outer)
10 32.5 cm 32 cm 23.8 cm 8.26 KGS
2.3 Detachability of Cable Pull Out
The cable entrance for corded devices can meet product specification. Function
test will be performed before and after this test. Refer to the definition of related
standard.
USB Implementers Forum. 2007-01-04. Micro USB connector mating force is less
than 30N, un-mating force is 8+/-1N. Life test is 5000 cycles in this device.
2.4 Key Board Specification
2.4.1 Life Test
Standard key is 5 million cycles and Function key is 3 million cycles. (5
times/second, 65±8gf).
2.4.2 Max Keycap Depressing Force

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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To act on the center of the keycap with stand 5Kgf force for 1 minute.
2.4.3 Keyboard Height
3.20
± 0.20mm（normal key）
3.20
± 0.20mm（space bar）
2.4.4 Max Keycap Depressing Force
To act on the center of the keycap with stand 5Kgf force for 1 minute.
2.4.5 Keycap Strength
To act at “X” and “Y” axis with stand 1Kgf force for 5 sec.
2.4.6 Keycap Spacing And Alignment
Clearance between keycaps (standard keycaps):
Δ H ( Δ V) -- ± 0.30 mm
Alignment (keycap to keycap): Neighbor 0.4 mm max
In a row 0.8 mm max
Height alignment (keycap to keycap): Neighbor 0.4 mm max
In a row 0.8 mm max
Key slant (keycap to keycap): 0.6 mm max
Key X, Y Movement: Shall be ≦0.5mm for full amplitude on both X and y
directions.
Key twisting: Normal key ± 2.0 °

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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Fn Key ± 1.5 °
Space key ±1.0 °
2.4.7 Key In Test Spec On The 4 Corners Of The Key Cap
Unit: mm (All Types)
A: Standard Key
B: Space Bar
C. Enter Key
D: Long Types Key

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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E: Small Key
Key in Force (Center) ≥ 80g
2.5 Characteristics of Switches
2.5.1 Slide Switch
No slide switch
2.5.2 Tact Switch
No tact switch
2.5.3 Sleep Magnet Function
No Sleep Magnet.
2.6 Characteristics of Cradle
2.6.1 Cradle Dimensions
Cradle is 274 mm long, 12 mm wide, and 11 mm deep on the inside slot
dimensions. The wall thickness will be approximately 1.8mm.
2.6.2 Cradle Material
The material for the cradle will be a hard plastic like PC or ABS. Then coated with
a rubberized paint to give it a soft feel. We are evaluating a foam insert to
accommodate different thicknesses of devices. The material will also have a

3855 South 500 West Ste Q | Salt Lake City, Ut | 84115 | 801.506.7081
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relatively high coefficient of friction to help hold the cradled devices.
3 Electrical Specification
3.1 Electrical Characteristics
1.1.1 Feature:
Bluetooth V 3.0 specification.
Bluetooth HID profile V 1.1 compliant.
Frequency Range: 2.400G ~ 2.480GHz
Peak Power consumption: 0.66 mA Max
Built-in 3.7V, 450mAh Li-Polymer Battery, can be rechargeable.
Sleep mode Power consumption: 0.033 mA Max
Security Encryption: 128 bits
Support AFH (Adaptive Frequency Hopping).
Support Language: US, Europe, Asia
Compatibility with iOS 6, 7, and 8
FCC, CE, BQB, R&TTE, RoHS
Active Range: around 10 meter
Build-in Power on/off Key.
RGB LED indicators for Battery Low alert , Recharge and Bluetooth
Connectivity
1.2 Power Rating