BT version: 7003D8 +5.3 ANC+ENC
Working distance : 10M
Battery: 620mAh
Battery:40mAh(earbuds)
Playing time: 8H
Charging time: 1H
Standby time: 720H
Frequency response:20Hz~20KHz
Speaker : 10mm
Produot size: 61*54m
Headphone size: 1.2*1.5mm
Product weight: 74g