Bluetooth version: Bluetooth 5.2

Supported protocols: A2DP, HFP, AVRCP, HSP

Chip: QCC 3040

Working frequency: 20HZ-20KHZ

Speaker diameter: 10mm

Speaker impedance: 32 ohms

Battery: Lithium polymer battery, 200mAH

Music playback time: approximately 18 hours

Talk time: approximately 20 hours

Standby time: approximately 120 hours

Charging time: about 2 hours

Charging port: TYPE-C

Headphones one to two: support

Headphone call noise reduction: supports

Headphone call mute: Supports