GOgroove NFC Clock Stereo Speaker Kit with Built-In Microphone , Dual Alarm , Snooze and Sleep Functions - Works With SanDsik Sansa Clip+ , Sony Walkman , PONO Player and More MP3 Players Not just another alarm clock, the BlueSYNC RST also functions as a Bluetooth speaker, FM radio, USB charger and viewing stand! Works With SanDsik Sansa Clip+ , Sony Walkman , PONO Player and More Equipped with NFC which offers a simple and fun way to pair instantly. After a one time introduction, touch your NFC capable tablet or smartphone to your device and you are good to GO, and groove The RST utilizes Bluetooth v2.1+EDR with A2DP and AVRCP for high-fidelity audio transmission and control at up to 33 feet. Easy to use on-board controls for pairing, volume control, pause, play, and even answer/end a phone call. The RST also comes with remote control for adjusting settings at a distance. Backed by a 3 Year Manufacturer's Warranty