Wireless Speaker Featuring High Definition Bluetooth� 3.0 Technology. Simply Pair Your Device To Enjoy Dynamic Stereo Sound. Features High Definition Sound With A Built-In Microphone For Easy Hands-Free Calling. Mode Button Lets You Choose FM Radio, Hands-Free Phone Or Auxiliary Mode For Easy Connection To Almost Any Electronic Device. Adjustable Silicone Carrying Strap. Use Micro SD Slot For A Preset Playlist. Non-Slip Bottom. Perfect For Your Home, Office Or Outdoor Activities. Pairs From Up To 30 Feet Away. Up To 2 Hours Of Play Time.