Product parameters：

Bluetooth chip: bluenews

Bluetooth version: 5.0

Bluetooth battery: 140mAh

Transmission distance: 10M

Bluetooth protocol: HSP, HFP, A2DP and AVRCP profiles

Speaker: d12mm

Speaker sensitivity: 100dB / 1kHz 1MW

Speaker impedance: 32 Ω

Frequency response: 20Hz-20KHz

Microphone sensitivity: - 42db

Standby time: more than 120 hours

Playback time: more than 6 hours

Note: 

1. Sleep aid mode can be switched

2. Call voice number reporting and voice answering and rejecting functions

3. Be able to connect two mobile phones at the same time

4. Metal ear shell with magnetic suction

5. Automatically shut down the phone after 5 minutes of disconnection from the Smartphone