The Premium Bluetooth Speaker with Adjustable Bass From ANKER, the Choice of 20 Million+ Happy Users Industry-Leading Technology Worry-Free Warranty Lower The Tone Simply hit the "UP" button, and your tracks will play with an extra dose of bass. Personalize your music and set the mood. High-Fidelity Audio SoundCore Boost delivers 20W of powerful, crisp audio via dual high-performance drivers, and twin passive subwoofers. Play Further Listen for up to 12 hours from a single charge. NFC enables instant pairing, Bluetooth 4.2 provides play from up to 66ft, and aux-in allows you to plug and play. Music and More In-built microphone turns the Boost into a hands-free speakerphone, while a 5200mAh external USB port allows you listen and power-up simultaneously. Audio Everywhere Designed to complement any interior - SoundCore Boost looks great at home, and away. Compact build and IPX5 water-resistant rating means the Boost slips into your bag and plays practically anywhere. Worry-Free Warranty At Anker, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support. Note Press "power" once to turn on, and once to turn off. Long press "power" to enable Bluetooth pairing. Playtime varies depending on volume and audio content. Does not support Qualcomm Quick Charge. Specs Weight:585g/20.6oz Dimensions:8 x 2.8 x 2.7 in/204 x 72 x 69mm Bluetooth Version:V4.2 Frequency Response:70Hz20KHz Impedance:4Ω Battery Capacity:5200mAh Charging time:4-6 hours Audio Output:10W x 2 Range:20m/66ft Driver (full range):1.75〞x 2 Waterproof Rating:IPX 5 Playtime:12 hours(varies by volume level and content) USB Output:5V=1A Input:5V=2A Whats in box 1 x Anker SoundCore Boost Bluetooth speaker 1 x Micro USB charging cable 1 x welcome guide 18 Month Worry-free warranty