Specification
✅ Model: LX-B39B
✅ Wearing method: head-mounted foldable
✅ Functional use: wireless earphones, bluetooth earphones, sports earphones
✅ Bluetooth version: Bluetooth 5.0+EDR
✅ Support Bluetooth mode: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5
✅ Battery: 400mah
✅ Speaker: 40mm/32Ω
✅ Frequency performance: receiving sensitivity: -84dBm; maximum transmit power 6dBm
✅ Transmission range: ≤10M
✅ Card playback: Supports playing songs in an external TF card. (TF≦32G)
✅ Indicator light: red and blue light flashes when power on, blue light flashes for playback after connection, red light turns off when fully charged.
✅ Headphone charging: rechargeable 3.7V/400MAH polymer A-grade lithium battery with overcharge and overdischarge protection board.
✅ Charging port: USB charging port
✅ Normal charging time: about 2 hours
✅ Music play time:
✅ Talk time: ≤6 hours
✅ Standby time: 200 hours