Malektronic Malibu Elite Wireless Speaker - Metallic Black Streams music wirelessly from any Bluetooth device up to 15 meters/50 feet away using Bluetooth 4.0 Available in Two Colors design Metallic Black & Platinum Silver Battery Duration of over 10 hours depending on volume using the built-in rechargeable 2600 mAh Lithium-ion battery Answers phone calls wirelessly from any Bluetooth smartphone including easy-to-use controls for music playback and answering phone calls Built-in NFC: Near Field Communication, a quick bluetooth pairing technology