Product parameters：

Bluetooth chip: csr8645

Bluetooth version: 4.1

Bluetooth battery: 50mah * 2

Transmission distance: 10M

Bluetooth protocol: HSP, HFP, A2DP and AVRCP profiles

Speaker: d6mm

Speaker sensitivity: 94db ± 3dB / 1kHz 1MW

Speaker impedance: 16 Ω

Frequency response: 20Hz-20KHz

Microphone sensitivity: - 42db

Charging time: less than 2 hours

Standby time: 120 hours

Playback time: 4 hours

Note:

1. Metal ear shell with magnetic suction

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

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