Waterproof Portable Multi-Function Wireless Bluetooth Super Bass 10W Speaker / 4000 mA Power Bank w/ Flashlight (Black) What you will get: Premium Quality Multi-Function Waterproof Portable Bluetooth Wireless Outdoor/Shower Super Bass Speaker / 4000mA Power Bank with Built-in Flashlight compatible with Bluetooth-enabled devices. Powered by Bluetooth V3.0 with 5W (x2) insanely loud super bass speaker and full range audio spectrum that is sure to delight your auditory senses. Built with a powerful 4000mAh built-in polymer lithium battery provides up to 20 hours of playback time of hi-fi sound output. Also serves as a power bank that will juice up your other devices via a standard USB charging cable. Likewise comes with a built-in LED flashlight that you can readily use should the need arise. Designed with built-in noise reduction microphone and additional speakerphone function free your hands for incoming phone calls. With MP3 SD card slot and Audio cable connection that allows you to play music from a SD Card or other audio sources using a 3.5mm audio jack. Compact, portable, waterproof, dustproof, shockproof, rugged design suitable for outdoor enthusiasts.