MobiFren GBH-S300 3 in 1, Stereo Bluetooth Headset, MP3 Player and Portable Disc. (Color Option: Silver) 3 in 1, Stereo Bluetooth Headset + MP3 (w/Micro SD Card / Card not included) + Portable Disc (w/Micro SD Card / Card Not Included) Premium Hi-Fi Stereo Created by MobiFren's specialized DSP tuning technology. Noise and Echo reduction with built-in DSP. Ultra Power Save Mode: Maximum stand by time up to 12 months Clip-on and necklace style. Multi point in stereo Bluetooth headset. Proximity auto pairing: Automatic pairing system if the headset is located within 30 ft to the device