Anker Bluetooth Speaker, Ultra Portable Pocket Size Wireless Speaker with 12 Hour Playtime, NFC Compatibility, Passive Subwoofer, Ultra Compact Ring Box Size (White) - A7910 Full, High-Def Sound: Enjoy an impressively full sound quality and robust bass realized through a 3W audio driver and passive subwoofer. Long Playtime, Fast Recharge: Enjoy 12 hours of music at 80% volume, up to three times longer than similar-sized portable speakers. Recharge in just 3 hours using the included Micro USB cable. Incredibly Compact: This ring box-sized bluetooth speaker fits easily into your jacket pocket or the small side pocket of your backpack (45mm / 1.8in, 90g / 3.2oz cube). Complete Compatibility: Pair smartphones, tablets, laptops and more via Bluetooth (up to 10 meters / 33 feet) or NFC, or connect non-Bluetooth devices such as MP3 players using the included AUX cable. What You Get: Anker Pocket Bluetooth Speaker, 2.3ft Micro USB charging cable, 2.3ft AUX to Micro USB audio cable, welcome guide, our fan-favorite 18-month warranty and friendly customer service.