Jiechen U21 Wireless Earphone User Manual

Jiechen U21 Wireless Earphone User Manual

Product Contains

Product Specification

Support Profile: HFP / AVRCP / A2DP
Headphone Charging Time: Up to 2 Hour
Working Voltage: 5V
Transmission Range: Up to 10m
Working Temperature: -10° – 55°

Power On / off [+] (-]

1. Headphone will power on and connect when you press and hold the “+” or™-” button for 2seconds.
2. Headphone will power off and disconnect when you press and hold the “+” or”-” button for 5 seconds under power on mode.
3. if Headphone will not power on, please use the charging cable to charge headphone first.

First Pairing

When you use headphone first time, please connect your cellphone / laptop.

1. 0pen the headphone and check the red and blue LED light flash on earbuds.
2. Turn on the Bluetooth page on your cellphone or = laptop and open the Bluetooth function.Select “U21″ to connect the device, the red and bluelight off when you connect the cellphone.
   The device will automatically turn offif not connected cellphone within 4 minutes.

Reset Headphone

When your headphone got the problems, please try to reset headphone.

1. Make sure the headphone power on, press and hold “+”, “” button both for 5 second to reset headphone.
2. The red and blue light on 3 seconds, when the headphone light off which mean reset successfully.
3. Now you can power on headphone again, and connect your device again.

Product Control

Product Charging

1. Long press 3 seconds “+”, ” button to close the headphone.
2. Connect the Charging cable to charge the headphone.
3. The red light on when headphone is charging, the blue light on means headphone is full charged.

Warranty

Type-c The warranty covers your device , including accessories against manufacturing, defects for 1 year from the date of purchase.

Which that are not covered in the warranty

Unauthorized tampering, modifications or repairs of the device. Physical damage of the device on the account of abuse, handling, storage, installation or testing including any use that is not in accordance with the product manual.

Certification

“This device complies wiith 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.” FCC ID: 2A7GB-U21

Safety For You

Do ot expose device to liquids, molsture or humidity. It has electroics and a battery in it Neither o them ks getting wet
Don’tuse abrasiv cleaningsolvents toclean yourdevice. Wipe them down it slightly damp cloth f and when necessary.
Remove and clean the earbuds tps regulary, o ensure that you auays enjo the best
sound possible from your device. vorotexpose dvie o xremeyighorlow empertures s s may damage he battery or even deform the plastic parts.

Don’ t throw yours device in afire to dispose it The internal battery may explode.
Don’ ttry to disassemble your device. There are no user serviceable parts nside .
“Try not to drop your device and keep it away from sharp objects such as keys in your pockets.
Only charge your device from 5V USB ports such as phone chargers and laptops or PCs.
Never listen to music at high volumes or you may permanently damage your hearing.
Pay attention to your surroundings and never wear any headphones while riding 0= driving or walking intraffic. You do not come with any warranty.

FCC Statement

TNs eq ulp me rt has bee n tested a nd found to co m Ny with the limits fora Class B digital device, pursuant to part 15 of the FCC Rules. The limits are designed to provide reasonable protection against harmful Interference In a reside Mal Installation.
TNs eq ulp me rt generates, uses and can raclate iadlof requency energy a nd,
If not Instated and usedln accordance with the Instructions, may ca use ha mif rl Inteneence to radio ccrnmunIc/lons. Retrieve r, there Is no g uara Nee that Interference will not occur In a parlicula r I retaliation. If this eq rl p me rt does ca use harmful I ntene rence to rack) or television ece ption, which C-3 n be determined by turring the equipment off and on., the use r Is e naou raged to try to correct the Interference by o ne or more cf the following measu es: •
Reo dent or reboate the receiving antenna.
Increase the se pa raio n between the equipment and receiver. •Con nett the equipment Into an outlet onadbilt (Prete nt from that to which the receive r Is connected.
Consult the dealer or an experienced radbllv technician Or help. Caution: Any changesor mocIficabo ns to t Ns device not ecplIclay a p pnoved by manttacturercorld void your authority to opeete t Ns equipment.
TNs device co m Nles with pat 15 of the FCC Rules. Operation Is su Matt to the rellowing taro co nottlo re: (1) TNs device may not C-3 use harmful I rte rte rence,a no1 (2) this device must accept any I rte
Ne fence received, luau:ling I nte fere nce that may cause undesired operation. RF Exposure Information The device has been evaluated to meet general RF exposure requirement.
The device can be used In Om m exposure condition, compliance with exposure requirements.

Read More About This Manual & Download PDF:

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>