Caraudio-Systems HTWI-300 User manual

Cara Audio Corporation
BluetoothHearingAidHTWI‐300
Bluetooth Hearing Aid Instruction
Manual
2. Electrical specification 3. Structure Description
Introduction:
We use the latest Bluetooth stereo chip of ISSC
Technologies Corp., Taiwan. Our hearing aid with
the modern design gives the best sound quality.
Bluetooth Specification Version 3.0, compatible
with older versions, allows our hearing aid to
connect easily to any electronic Bluetooth products
in the market.
1. Features
Bluetooth V3.0 Chip of ISSC Technologies
Corp in Taiwan
Compatible with Bluetooth V3.0 Products
Automatic call switch
Last number redial function
Electrical volume control switch
Back/Next buttons for music selection
High Sensitive Microphone
High SNR (Signal-to-Noise Ratios)
Hearing aid function for elders with simple
and fine structure

1、Working Voltage：3.7V
2、Working Current：35mA
3、Effective Distance：>10M
4、Working Temperature：-20～+48℃
1. Built-in rechargeable 260mA lithium-ion battery
2. Connect to cell phones or tablets in the same
time through Bluetooth
3. DSP for avoiding echoes and noise reduction to
have high-quality calls
4. BluetoothA2DP makes call/listen to music in both ways
5. Can install automatic frequency NFC on the hearing aid for
your cell phone
6. Connect with earphones or home stereos to play music
in the cell phone on a home stereo
7. Simple hearing aid function for elders
4. Package Detail
After opening the box, please check the following items:
1. Bluetooth Hearing Aid X 1
2. Stereo Headphone X 1
3. USB Charging Line X 1
4. Instruction Manual X 1
5. Package and Weight
1. Small white box：85 X 33 X 80 mm
2. Inner Box ：174 X 202 X 164 mm
3. Outer Box ：360 X 422 X 340 mm
4. N.W. ：24.6g
5. G.W. ：
Specification Bluetooth Hearing Aid Stereo
Headphone Cable
Transfer Type Bluetooth /
Transfer
Version
V3.0 with A2DP
2-Way Function
/
Frequency
Range
2.402-2.480ghz /
Wireless
Range
10m /
Working
Current
35mA
Working
Temperature
-20~+48℃
Charging
Voltage
5V /
Battery
Voltage
3.7V /
Audio
Interface
3.5mm Audio Jack 3.5
Playback Time 12h /
Battery
Capacity
260mA /
SNR
Label wireless /
Product Warranty Card
Customer Gender Age
Address
Telephone Sales Agency
Item & Specification Serial Number
Sales Agent Signature User Signature

CaraAudioCorporation
BluetoothHearingAidHTWI‐300
Remark
1. There is a little Power Switch on the right side. Please turn it on first.
2. Then press the crystal heart-shaped button in the front for 3 seconds. Blue LED will light on.
3. Pair the hearing aid with your cell phone first. (Turn on Bluetooth in your cell phone and search
“wireless” to connect.)
If it is connected, you can play the music in your cell phone to listen through the hearing aid. Press the
heart-shaped button can redial the last phone number.
4. Press the heart-shaped button to switch to hearing-aid function.
**Please connect with Bluetooth first before you try hearing-aid function.
5. Press the heart-shaped button for 3 seconds to turn off and there will be no blue light.
＊Charging: Red LED will light on and disappear after fully charged.