1. Bluetooth 5.3; Chip: JLAC7006

2. Battery capacity: 400mAh. charging for about 2 hours

3. Use time: 40 hours; standby 200 hours

4. Size: 193*170*76mm; Weight: 193g

5. Support Bluetooth. AUX. TF card mode

6. Support Chinese and English prompts: double-click the M key in unpaired state