1, Bluetooth 5.4, chip: Blue trum AB5632C 2. Battery capacity: 400mAh; Charging time: 2 hours 3. Usage time: 30 hours (22 hours with ANC on) 4. Size: 188*168*79mm; Weight: 239g 5. Support ANC noise reduction, independent key switch; Support Bluetooth, AUX and other modes 6. Support Chinese and English prompt sounds: double click the power button when not paired.
