• Bluetooth Version: V4.2
• Battery Capacity: 250mAh 
• Drive Unit:40mm*2
• Sound System: Stereo (double channel)
• Playback time:10hours
• Charging time:3hours
• Input charging Standard: DC 5V 300MA
• Support: HSP/HFP/A2DP/AVRCP
• CVC 6.0 Smart noise reduction high version
• 5.1 soundtrack with surround stereo

Folding design, portable folding, flexible wearing, easy and simple music life, just a few steps, you can put it in your backpack. Light and atmospheric, the 125g lightweight design is equivalent to the weight of a hat. The earmuffs are made of high-quality protein skin and are very comfortable to wear.