Anker Classic Portable Wireless Bluetooth 4.0 Speaker with 20 Hour Rechargeable Battery and Full, High-Def Sound - A7908 High definition sound and the industry's longest playtime packed into one of the smallest packages. Your mobile audio, delivered. Volumes of High-def. Don't simply pump out volumes of sound, but volumes of surprisingly clear and full-bodied sound. Powered by a 4-watt, 2-inch driver and topped off with a bass port, experience the clarity and volume of a boombox, without the bulk of one. Play All Day and All Night. We packed the whole set into a 3-inch cube that easily slips into your pack or purse. The built-in rechargeable battery enables a breakthrough 15-20 hours of playtime so you can jam through a full day and still play your nighttime-ambiance soundtrack on a single charge. Not to mention breakthrough: up to a 33-foot connection range (standard is 30 feet or less). No PhD Needed. Built for ages 6 and up, simply slide the on/off switch to the "on" position to automatically connect to the last-connected device and start streaming your music - that's just one step. The unit also doubles as a speaker phone with a 2-foot range microphone so you can answer or make calls mid-song. Broad Compatibility. Connect with any bluetooth-enabled device (Bluetooth 2.1 and over) or just plug in with the traditional audio cable to start your tunes. Get to know us. We created Anker with a single goal in mind: to make the smart life easier. That means starting with affordable, high-quality gear and ending with a commitment to 100% user satisfaction and an 18-month . After all, we're customers too.