Specifications:
Bluetooth Version 5.0 + EDR
Memory Card / TF Card Supported.
Transmission Distance 10m
Using Time: 20-40 hours
Standby Time: 400 hours
Battery Capacity: 200mAh
Charging time: 4 hours
Speaker Diameter: 400mm
Range of Frequency: 20Hz-20KHz

Feature:
Classical leather earpad Improves the comfort of the pressure ear.
Fold to Convenient storage.
4.1V lossless transmission.
3D Sound for your ear.