Mini portable stereo speaker</br>Enjoy your music everywhere</br></br>Product Description</br></br>L2go 3.5mm Mini-boom Portable Stereo Speaker for iPod iPhone MP3 MP4  Player Smartphone Tablet <br><br>Dual channel<br>Working time: more than 10 hours (depends on battery)<br>Output: 1W + 1W<br>3.5mm standard connector<br>2 speakers: 28mm in diameter<br>Frequency range: 200Hz - 20kHz<br>Net weight: 40g or 1.41oz<br>Size: 80 x 80 x 30 mm (3.35 x 3.35 x 1.18 in)<br>Impedance: 8ohm<br>Powered by 2 AAA 3V batteries (not included)<br>Compatible with all devices with 3.5mm connector?? such as iPhone?? iPod?? MP3?? MP4?? etc.<br> <img src="://images-na.ssl-images-amazon.com/images/I/41pziOBMu8L._SX385_.jpg"><br><br>1 X Speaker</br><br/>http://www.amazon.com/gp/product/B005UWD2YYYsing