Small in size & BIG on quality. Play FM radio and enjoy your favorite music directly through Bluetooth, PEN drive or Micro SD card with rechargeable battery. Ideal companion for iPhone's, Smartphone's, iPad's and Laptop's (gives excellent audio output when you are enjoying your movies in your own comfort).Can be easily carried in your bag when travelling. Supports phone/ laptop/ Tablet PC/MP3/MP4. Supports TF Card/ USB/AUX function. Modular buddy-jack & apos design: connect a row of mini speakers to get jaw dropping audio performance. Expanded bxs (Bass Expansion system) drives a fuller, richer low-end response. New, larger driver delivers precise high for superb sound. Built-in Microphone. Bluetooth Function. Handsfree Call Feature. Built in Rechargeable Lithium Battery. Compatible with Laptop/MP3/MP4 Player and External Audio Devices with 3.5mm Stereo Output Jack. Fashionable rugby style bluetooth speaker Built-in Microphone, enjoying hand-free call. Adopt high quality audio decode chip, let you experience perfect sound quality. Support TF card and FM function. With AUX input, easy to enjoy music from PC, iPhone, iPod, cellphones and more. Long talk time and standby time with low power consumption. Support switch songs and volume control. Work with most of Bluetooth enabled devices, such as mobile phones, tablets, computers, etc. Built-in charging battery, listening music anywhere. Bluetooth Support - V 2.1 +EDR. Range - 10 meters. Transmitting Frequency - 2.4G HZ. Power Supply - DC5V/100-120mA. Battery - 3.7V 1000mAh lithium. Charging Time - approx. 3 hours. Operating Time - approx. 6 hours. Frequency Response - 100HZ-20KHZ. Support - Bluetooth/TF Card/ AUX IN. Output - 3W S/N. Ratio - 75db. Distortion - 0.1% colour may very