WEMS A7 Technical specifications

A7 Product Description
A7 Product Description
Function description
First Use headphones:
Take out two headphones, while holding down the key 5 seconds,
do not let go until two headphones led red and blue light flashing,
double-click any one headset power-on key, two headphones
automatically connected; At this time the headset led red and blue light
flashing main headphones, headphones blue light flash for the headset
And then take out the phone search pairing name "A7", click on the
connection, you can use the TWS wireless headset Bluetooth
headphones; In use, press and hold a headset switch machine 5 seconds,
two headphones can be shut down simultaneously.
Use headphones again:
Remove the main headset, press and hold the key 5 seconds or so
don't let go, until the headset led red and blue light flashing, and then
the phone to take out the search pairing name "A7", click Connect, at this
time headphones mainly headphones, you can use the main headset
alone; to use the TWS Wireless to ear mode, take out another headset,
for the headset, press and hold the switch machine 3 seconds do not let
go, until the headset LED is blue light, the headset will automatically

connect with the main headset; in use, press and hold a headset switch
machine 5 Seconds, two headphones can be shut down at the same time.
Answer the phone
a: You can use your mobile phone to answer, use the phone to pick
up after you have to choose a good Bluetooth pairing name can be a
Bluetooth call;
b: Use headphones to answer, short press main headset open key,
answer, long press main headset 2 seconds or so, refused to answer.
Dial number
Mobile phone and Bluetooth headset connection, directly with the
phone call, you need to choose the Bluetooth name call, then you can
use Bluetooth headset to talk. In the boot state, the long press 2 seconds
or so, call recording the last number replay.
Hang up the phone / Call Waiting
a: Use the phone directly to hang up the phone;
b: Short Press the main headset to open the key, hang up the call;
C: Long by main headset open key 2 seconds or so, call wait /
restore.
Music playback
Connect the Bluetooth headset, use the mobile phone to play songs,
the songs on the phone transferred to the Bluetooth headset, such as no

music, need to adjust the audio output of the phone, choose from
Bluetooth device output;
a: Short Press main headphone key, play / pause song;
b: Short Press the headset to open the key, play the next song.
Headphone charge
1, the headset into the charging box, cover the Charge box, press
the Charge box power button, the headset red light into the charging
state, when the headset display blue light, indicating that the battery is
full;
2, using the distribution of the Micro USB charging cable, charging
the charging box, charging according to the current amount of power 4
light on the lights and flashing, after the full time 4 led to remain fully lit.
Headset Key Function Instructions
A headset operating mode:
1, Shutdown state: Long Press open key 3 seconds or so,
headphones into the back-connected mode, only with the successful
Bluetooth connection to the phone automatically back to the match;
Long press 5 seconds or so, headphones into pairing mode, you can
search the Bluetooth name with the phone you've never been connected
to. A7paired use, such as a paired phone, you need to go to the mobile
Bluetooth settings to find the paired Bluetooth name "A7" Click Connect
to use.

2, after the boot headset is not connected to the mobile phone
status: If the key to short, back to the paired mobile phone, long press
open key 4 seconds or so, headphones off.
3, with the mobile phone to match the success of the status: Short
Press key, play / suspend the song, double-click on the key, call record
last replay, Long press 4 seconds or so shut down, long press open key
2s , call up mobile phone voice assistant.
4, paired successfully, mobile phone calls are not connected to the
state: Short press open key, answer, Long press 2 seconds or so, refused
to connect, long press 4 seconds or so off.
5, paired with the success of the phone to power not connected to
the state: Short press open key, hang up the call; Long press 4 seconds or
so off.
6, paired successfully, mobile phone status : Short Press key, hang
up the call; Long press 2 seconds, call wait / restore, Long press 4
seconds to shut down.
TWS Working mode:
1, shutdown state: Any one headset press on the key to open keys 3
clock, headphones into the return mode, only with the successful
Bluetooth connection to the phone automatically back to the match;
Long press 5 seconds, headphones into pairing mode When both

headphones are in pairing mode, they automatically interconnect into
the TWS headset mode.
2,TWS working mode is not connected to the mobile phone status:
Any one of the Chief Pilot button to open the key 5 seconds,
headphones off.
3,TWS working mode and cell phone pairing in a successful state:
short according to the main headset open key, play / suspend the song;
Short press the headset to open the key, play the next song; Double-click
the main headset power-on button, call recording the last replay; 5
seconds, the headset shuts down at the same time, long press the main
headset to open the key 2S, call mobile phone voice assistant.
4,TWS working mode and cell phone matching success, mobile
phone calls are not connected to the state: short according to the main
headset open the key, answer to listen to, long by the main headset 2
seconds, refused to answer, any captain to press 5 seconds or so off.
5,TWS working mode and cell phone pairing is successful, the
mobile phone to electricity is not connected to the state: short by the
main headset open the key, Hang up the call;
6,TWS working mode and cell phone matching success, mobile
phone status: Short according to the main headset open the key, hang
up the call; Long press main headset open key 2 seconds, call waiting /
restore; seconds to shut down.

LED lamp Status
Bluetooth working status
LEDs Light Status
Pairing status
Red and blue light to flash
Connection Status
Blue light Slow Flash (4S Flash)
Low battery status
Red light, Slow flash.
Other requirements:
1, Low battery alarm voltage:3.3V, low power shutdown voltage:3.1V
2, Low Battery alarm interval:30s
3, Pairing status Timeout 3min shutdown
4, Power Display icon for Apple and Android systems
5, The support tripartite call function specific requirements are as follows: The
phone is talking, the second caller is dialed in , click the primary ear to hang
up the current call , new call ; Double-click to keep the current call, and
answer , new call ; Long press to continue the current call , to reject new calls
(this tripartite call function is also supported when single ear is used)
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.
-- Consult the dealer or an experienced radio/TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions:(1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
The device has been evaluated to meet general RF exposure requirement. The device can be
used in portable exposure condition without restriction.