SoundBot SB521 Bluetooth Wireless Mini Speaker Hands-Free Calling Portable 3W 45mm Diameter Driver Speakerphone w/ Elegant Premium Alumni Finish, Built-in Mic, 3.5mm Aux Line-In Port, & Rechargeable Battery, 5hrs of Playback Time High definition 3 watt 45mm premium loud speaker driver to deliver well balanced and dynamic full spectrum music output for both active outdoor and indoor use. Bluetooth wireless technology and built-in 3.5mm aux line-in port allows SB521 to connect to media devices WITH OR WITHOUT Bluetooth capability. State-of-the -Art fashionable and stylish alumni design with solid performance and universal compatibility for Android, iPhone, iPad, tablets, smartphones, iPods, MP3, MP4, radio players, and other Bluetooth enabled digital players or media devices with 3.5mm aux port. Intuitive control panel underneath the speaker with easy access to music streaming and handfree talking / volume up / volume down / fast forward (skip) / backward / pause / play / power buttons. Featuring a silicon bumper foundation to absorb the vibration from the loudspeaker bass and increase the stability and usability to offer the optimal music listening and hands-free talking experiences.