SN-537K 5.3 Bluetooth Live Earphones Built-In Sound Card Wireless Receiver Sports Earphones(Black)

1. Bluetooth version: 5.0 + EDR2. Transmission distance: about 10m3. Battery capacity: 800mAh4. Charging input: 5V 1A5. Charging port: Type-C/USB-C6. Playback time: about 10-12h7. Wireless frequency: 2.4GHZ8. Remote control battery: AA dry battery (not included) x 29. Weight: about 52gFeatures:1. Wireless sound card, the whole wireless operation, with wireless remote control2. Built-in sound card, 20 kinds of electric tone base3. retain the original function, Bluetooth listening / calling4. Half in-ear type, heavy bass effect5. Self-monitoring, real-time ear monitoring without delay, at any time to connect the PK, two-way communication6. Compatible with computers and cell phones, wide applicability7. Multiple wireless accompaniment, Bluetooth transmission, intelligent voice change8. Automatic frequency pairing, power on automatically connected9. Lightweight and portable, with power display10. 3 connection modes:- 2.4G receiver live connection, wireless operation- OTG lossless audio live connection, connected for live streaming, shooting pickup, recording, etc.,