Robust 3.5mm jack that attach very well to your 3.5mm device, unlike other designs with cable or swivel 3.5mm jack that are difficult to attach or prone to breakage or mechanical damage. Elegantly designed Universal Bluetooth 3.5mm Stereo Transmitter. Compatible with Hi-Fi, PC, PSP, Nintendo DS, CD/DVD, iPod/iPhone/iPad, e-Book readers, MP3/MP4, PDAs, PMP player"s, etc 3.5mm audio socket, enabling such devices to become Bluetooth and you can enjoy wirelessly with your Bluetooth stereo headsets, receivers. Take the output of your CD/DVD players, MP3/MP4 players, PDAs, or iPod/iPhone/iPad and convert it to streaming stereo audio via Bluetooth transmission - all in one compact unit. Working range: 10M (33ft.). Integrated rechargeble battery, Charging via USB port with included USB cable.