Sensitivity: 84dB
Plug Type: Wireless
Function: For Mobile Phone,for Video Game,HiFi Headphone,For iPod
Active Noise-Cancellation: Yes
Support Memory Card: Yes
With Microphone: Yes
Volume Control: Yes
Waterproof: Yes
Control Button: Yes
Frequency: 2.40GHz-2.48GHz
Effective distance: 10meters
Resistance: 32Ω
Line Length: 1.2m
Playing time: about 8-10 hours
Charge time : 2-3hours
Power supply: powered by rechargeable 400MAH battery
Speaker: high quality 40 mm diameter speaker