MixBin Ultra Portable Mini Drum Bluetooth Speaker with Keychain & Selfie Camera Feature (Gold) Portable Size  This speaker weighs in at only 2 ounces and is perfect for the grab and go music fanatic. Bluetooth/AUX  over 33 feet of Bluetooth range as well as AUX in port for listening to music the way you want to. Answer Calls  With on speaker buttons and a built-in microphone you can answer/hang-up/redial/refuse calls. Selfie Button - Remote Shutter Selfie feature lets you take a selfie with the on-speaker buttons. Never Leave It Behind  With the built in keychain you can just clip in and jam on anywhere. Compatible - This speaker is compatible with any bluetooth enabled smartphone or device with AUX capabilities.