• Wear Style: in-ear ( it can be used as pairs or you can use them as 2 single earphones）
• Connectivity:  wireless
• Connection port: USB
• Sound principle: dynamic coil
• Features: Bluetooth, support for music.
• Headphone Plug Type: Wireless
• Sensitivity:-38db
• Frequency response range:20-24KHz
• Length:none
• impedance:32Ω
• Whether waterproof: no
• Support APT-X:no
• Support for memory card reads: no
• Supports app control: no
• Bluetooth version:bluetooth 4.2
• battery capacity:65mAh
• Charger box:1500mAh,fast charging( can be charged into 100% in 1 hour)
• Talk /music time:about 5 hours