Bluetooth version: 5.1

Protocol: HFP 1.7 / HSP1.2 / A2DP 1 / AVRCP 1.6/ SPP1.2 / PBAP1.0

Noise reduction version: CVC8.0

Frequency range: 2402MHz ~ 2480MHz

Working distance: 10m

Charging input voltage and current: 5V

Headphone battery capacity：50mAh

Charging compartment battery capacity: 2000mAh

Headphone charging time 2 hours

Music playback time: 4-5 hours

Talk time: 4-5 hours

Specifications:The latest Bluetooth V5.1 technology Using CVC8.0 digital noise reduction technology High capacity batteries are used for a long time IPX7 waterproof and sweatproof Binaural separation design Designed for sports