1. Master-slave switching, single and double ears can be used at will
2. Adopt 13.0MM super large unit, super bass, enhanced low frequency sense, clear treble, highlight the sound of instrument
3. Ergonomic design, comfortable to wear
4. Material: PC+ABS
5. Battery capacity: 320mAh for charging compartment, 40mAh for headset
6. Standby time: about 40 hours
7. Play time/talk time: about 4 hours
8. Charging time: about 1.5 hours for earphones, about 2.0 hours for charging compartment
9. Size: 58x46.5x25.5mm, weight: 38g