GOgroove BlueSYNC EDG Portable Wireless Bluetooth Speaker w/ Rechargeable Battery , Stereo Streaming & Green LED Glow Lights for Smartphones , Tablets , MP3 Players , Laptops & More Delivers powerful, portable sound with advanced SonusMax design; Utilizes Bluetooth v2.1+EDR with A2DP for audio transmission up to 32 feet! Stylish, cutting "EDG" design complete with blue LED accents lets you listen to your music in style Universal design works with the latest phones, tablets, MP3 players, laptops, handheld gaming consoles, and other devices using a 3.5mm audio connection OR Bluetooth 2.1 and higher Rechargeable Lithium-ion (Li-Ion) battery provides 6-8 hours of continuous audio playback per charge TECH SPECS - - Speaker output power: 3W RMS / Impedance: 4 Ohms / Frequency response: 100Hz-20KHz / Dimensions: 3" x 3" x 3" Weight: 9.6 ounces - - Quality Guaranteed: 3 Year Manufacturer's Warranty