Source Unit Dimensions Total Mounting Depth (in): 3.14. Source Unit Dimensions Mounting Bezel (Round) (in): 4.75. Proposition 65 Notice: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. What's In The Box: (1) Portable Bluetooth Speaker. (1) Micro USB Charging Cable. (1) 3.5mm Auxiliary Cable. Bar clamp to mount speaker. Rubber detachable strap. Owner's Manual. Warranty Card. Features: Rockville ROCK EVERYWHERE Waterproof Portable Bluetooth Speaker with TWS Stereo Linking. RMS Power Handling: 15 Watts. Audiophile sound quality. Uses the best drivers and a passive radiator subwoofer to give amazing frequency range and sound quality. Uses DSP tuning along with top of the line drivers to achieve a very balanced sound. Actions 4.2 Bluetooth chipset streams Bluetooth with high fidelity and is efficient on the battery life. Completely Waterproof with IPX6 Rating - You can submerge it under water for 20 seconds without damaging it. Built in TF card slot with support for up to 256gB TF card. TF card supported file formats: MP3/WMA/APE/FLAC/WAV. ROCK EVERYWHERE is bar mountable and include the mounting clamp that screws into the bottom of the speaker. Battery charges with included USB cable. Play, Pause, Skip Forward, Skip Back, Volume Up, Volume Down. Will control next song, pause, play on popular apps like Pandora, Spotify, and others. 40 Foot Maximum Bluetooth Range. The built-in microphone allows you to make and receive phone calls hands-free. Rugged and Shockproof with Rubberized Impact-Resistant Silicone Feet. The Rockville ROCK EVERYWHERE is a true wireless stereo (TWS) Bluetooth speaker that you will want to bring with you everywhere you go because it sounds so good!