SOMHO Super Bass S323 Wireless Portable Bluetooth Mini Multi Function Hifi Amplifier Sound Box with Mic Handsfree -Gold Features of bluetooth speaker speaker : Super bass bluetooth speaker + Full Bass sound from ultra compact structure + Functions: BT/AUX in/TF card/USB/FM/hands free (NFC optional) + Speaker: Φ52mm 5W*2 + Bluetooth 2.1+EDR, easy connect to bluetooth devices + Operating Distance: >10M + Support: MP3, WAV, etc + Working time: music 6-10 hrs, call time 4-5 hrs + Charging time: 2-3 hr Specifications of bluetooth speaker speaker : Model S323 Material Metal, ABS, Silicone Speaker Φ52mm 4Ω5W X 2 Charging Voltage DC5V / Micro USB charging RF Range 10-15M Frequency Response 180HZ-20KHZ Signal Noise Ratio >86±2dB Battery 3.7V 1200mah Charging time 2-3 hours Playtime 6-10 hours Weight 530g Size 190*86.5*63m high-quality dj speakers You will be impressed with our ihome speaker which are high quality sound portable speaker are designed for use in audio great bass to any existing audio system. In a word best products