Naztech Hypnotic Wireless Speaker. Universal Bluetooth Compatibility, Powerful 3W Speaker & Class D Amplifier: Booming Bass & Crisp Treble, Water Resistant, Up to 6hrs Playtime, Built-in Microphone Powerful 3W Speaker and Class D Amplifier ensures rich and dynamic sound with enhanced booming bass and clear treble tones Universal Compatibility: Works with all Bluetooth Audio Devices. Pairs instantly with smartphones, Tablets, and computers, for easy wireless streaming with a connection range up to 33 feet Hands-Free Calling: A built-in noise cancelling microphone makes it an excellent speakerphone Extended Battery Life: Rechargeable li-polymer battery provides up to 6 hours of playtime before you have to recharge Available in 4 Colors! Package Includes: Wireless Speaker ? 3.5mm Stereo Auxiliary Cable ? Micro USB Charging Cable ? User Manual