Apollo23 - Sports Stereo Wireless Bluetooth Headset for iPhone 5 Samsung Galaxy S3 i9300 Note 2 N7100 Smart Phone with Charger, Black & Red Streamlined design of this headset means great wearability Stable neckband means versatility for us Seamless switching between music and calls Supports Bluetooth V2.0+EDR with handsfree, headset A2DP (stereo music) and AVRCP (music controls) profiles Frequency response is 22-18000Hz and total harmonic distortion is less than 0.5%