Model Number: WS-887Operation range of 10 meters40mm 3W driver400mAh Li-ion battery offers approximately 4.5 hours of talk timeApproximately 3 hours of music playback and up to 165 hours of standbyListen to music with volume adjustment, previous/next/pause functionsTF card playback support Wireless Bluetooth Speaker with Aux Support, Micro SD Card Reader, Mic. for handsfree callingPremium Metal body with Top Firing 3W RMS speaker, Dynamic Sound Effect with Crystal Clear Sound Playback"}]