1. Bluetooth 5.4 Blue trum AB5712C 2. Battery capacity: 800mAh Charging time: 2 hours3. Use time: 90 hours (45 hours on ANC) Standby time: 200 hours4. Material: ABS；Size: 204*174*82mm Weight: 270g5. Support Bluetooth, TF card, AUX mode6. Support ANC noise reduction7. Support Chinese and English prompt sounds: double click the M button when not paired
