Wireless Keychain Bluetooth




X21s Keychain Bluetooth 5.0 Wireless LED Power Display Tws Earbuds

1-LED power display, more intuitive to know the battery life.
2-bluetooth 5.0, more stable and faster connection.
3- Waterproof, no fear of rain and sweat.
4-Touch operation, get rid of discomfortable of tranditional button.
5-Built-in battery, can provide emergency power for your mobile phone.
Product Specification:
Model: X21S
Bluetooth Version: Bluetooth V5.0+BR+EDR+BLE
Bluetooth Protocol: a2dp\avctp\avdtp\avrcp\hfp\spp\smp
Frequency Range: 2402MHz-2480MHz
Modulation System: GFSK /DQPSK;Max Power output: +4dBm
Fosc: 24MHZ
CPU Frequency: 96MHZ
Power Supply: DC 2.2V-5.5V
SNR: ≥92dB
Effective Distance: no barrier 10M
Frequency Response: 20HZ-20KHZ
Sensitivity: 98dB
Nominal Impedance: 32Q
Transmission Power: Class 2
Battery Capacity: 50 mAh
Power Supply: 5V /500mA
Charging Time: About 1 hour
Service Time: making telephone call 8 hours, playing music 5-8hours
Standby Time: 20-30 days
Color:black , white

What’s in the Box :
1 x Pair of Wireless Headsets
1 x Battery Compartment Case
1 x USB Cable
1 x Key buckle
1 x Instruction Manual


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