Type: Active Noise Cancelling
 Chipset: TI (Texas Instruments)
 Noise reduction depth: 20db±2%
 Impedance: 32Ω
 Frequency response: 20-20kHZ
 Speaker sensitivity: 118db
 Microphone sensitivity: 40dB±2%
 Battery capacity: 500mAh
 Working voltage: 2.5V
 Working current: 10mA Quiescent current (single noise reduction) 7mA

1.Foldable and Portable Design
2.competitive price in the market .
3.high quality material Very durable and abrasion resistant
4.Standard 3.5mm earphone plug fits all MP3 players with 3.5mm jack.
5.Stylish design (OEM) to fit your cellphone or other MP3 players.
6.With special cable design,enough space print your own logo.
7.Enjoy best-in-class performance and optimum sound quality.
8.Can accept small quantity to check the quality and Market.