1. Automatic matching, connect immediately after taking out 2. Comfortable close-to-ear design, not easy to fall off 3. Audio and video synchronization, zero transmission delay 4. Cold light smart LED digital display, realtime battery data is clear at a glance 5. Function: battery display, call function, NFC function, voice control, support music 6. Support protocol: A2DP1.3 / HFP1.6 / HSP1.2 / AVRCP1.6 / D11.3 7. Battery capacity: headphone 35mAh, charging box 250mAh 8. How to use: earplug type 9. Transmission range: 15 meters 10. Bluetooth version: 5.0+EDR 11. Standby time: 120 hours
