Specification:
- Brand: Rockspace
- Model D400
- In Ear, Hook Design
- Weight 11Gram
- Dimensions 70 x 47 x 19
- with Microphone
- Bluetooth Version 5
- Transmission 10M
- Battery Capacity 110mAh, 3.7V
- Charging Time about 2 Hours
- Taking Time about 6 Hours
- Music Time about 7 Hours
- Standby Time about 135 Hours
