X21S TWS Wireless Bluetooth 5.0 Stereo Earphones HiFi Binaural Waterproof Sports Headset with Charging Box – Black

• LED digital power display. Add a new power display screen, charging cabin, headphone electricity at a glance, real-time perception of electricity

• Automatic pairing. Long by two headphones main buttons at the same time, until the headphones red and blue lights flashing at the same time and then loosen the button, quickly click on the left

• Earphone twice, two ear opportunity to connect automatically. When one of the Headphones stops blinking, the pairing is complete

• Humanized operation design, according to ergonomics, adopts semi-in-ear design, three-point support is more suitable for the auricle, making the ear more comfortable

• Compact and lightweight. The exquisite and compact charging compartment can be put into the pocket, where to go, no longer afraid of the headset

• Powerful compatibility, intelligent compatibility with a variety of APP, whether it is iOS or Android system

• 600mAh large capacity charging bin  

• IPX5 waterproof 

• Binaural call, CVC intelligent noise reduction 

Specification: 

• Product Name: TWS dazzling Bluetooth Headphone 

• 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 

• Crystal frequency: 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: 32ohm 

• Transmission Power: Class 2 

• Battery Capacity: 50mAh 

• Power Supply box: 5V/600mAh 

• Charging Time: about 1 hour 

• Service Time: making telephone call 8 hours,playing music 5-8 hours 

• Standby Time: 20-30 days 

• Channel: stereo 

• Using type: earplug 

• Function: power display, voice control, call function, support music, NFC function, multi-point connection

• Earphone size: 2.8×1.5×2.1cm 

• Charging bin size: 9.2×4.7×2.5cm 

• Full size: 13×9.5x4cm

Compatible with:

• iPhone/Samsung/Xiaomi/Huawei LG etc. Bluetooth-enabled devices