TinyGadget&reg; Natural Bamboo Wood Portable Wireless Bluetooth Mini Speaker for PC / Phone / Tablet / Apple iPod / iPad / iPhone / Andriod / MP3 Player (Birch) Hand crafted with 100% natural bamboo Bluetooth 2.1 + EDR for wireless connectivity up to 33 feet 3 watt loudspeaker output Built-in 3.5MM stereo input compatible with any music device Built-in rechargeable Lithium battery for up to 5 hours of continues music play