Bluetooth version: Bluetooth 5.1

Supported protocols: A2DP, HFP, AVRCP, HSP

Chipset: QCC 3020

Working frequency: 20Hz-20kHz

Speaker diameter: 10mm

Speaker impedance: 16 ohms

Battery: Lithium polymer battery, 160mAh

Music playback time: approximately 12-16 hours

Talk time: approximately 16 hours

Standby time: approximately 120 hours

Charging time: about 2 hours

Charging port: Type-C

Dual headphone connection: Supports

Call noise reduction: supported

Mute during calls: Supports