Bluetooth version: Bluetooth V5.0
Supported mode: A2DP/HFP/HSP/AVRCP /L2CAP
Frequency response: 20Hz-20KHz
Speakers specifications: Φ13mm 32
Muke wind sensitivity: -42dB/±3dB
Distortion rate: 0.5%
Transmission distance: ≤10 meters (barrier-free)
Battery Specifications: Headphone battery 3.7V/40mAh 501012
Charging case battery 3.7V/602030 300mA
Output power: 40mW
Working time: 3.5 hours or so (that's when you're talking or playing music on a fully charged battery
Between.
Standby time: about 50 hours (this refers to the maximum standby time when the battery is fully charged).
Charging time: about 1 hour for charging in the charging bin