Specification

-- Impedance: 32 Ω±15%
--resonant frequency: 200HZ±20%
--Effectiveness bandwidth: 0~20,000Hz
--Frequency range: 0 Hz-20,000 Hz
--Sensitivity:  105 dB±3dB at  1000  Hz
--Microphones sensitivity: 43     +/-3dB@1KHz
--Plug: 3.5mm stereo jack 

In-ears design with fashionable tinge, super function of noise cancels
*Light weight and fashion appearance,wearing comfortable and naturally
*The speakers were made of high protect magnet, it had enhanced the expression of bass and susceptibility    
*Voice circle had increased the sound quality
*Golden plug ensure a well connection
*Interchangeable comfortable rubber earplug cushion
*Provide different color according to the demand of customers
*RoHS,CE and customers Logo and design, color available

OEM/ODM,Customized Logos/Designs are Welcome