PRODUCT SPECIFICATIONS:Hands free callsWorking Range: up to 10MWorking Time: 3 HoursLoudspeaker Output: 5w x 2Frequency Response: 150Hz - 20KHzBattery: 3.7V / 1200mAhCharging: 5V / 500mATF Card Slot & USB Port availableFM RadioT&G Bluetooth Wireless Stereo Speaker TG-179 is a portable loud speaker that you can easily carry along with you anywhere and enjoy crystal clear and quality loud sounds from your phone, mobile devices, and PC.International advanced Bluetooth chip and circuit design techniques enables it to support all Bluetooth devices.playing music immediately after pairing it with a Bluetooth device for example mobile devices like phones, PCs, TabletsThe working distance is up to 10MIt comes with a Mic function for hands-free phone call function.Built-in MP3 decoding, can directly play TF card, mobile and other USB storage devices stored in MP3 format music files.It comes with a Built-in FM radio module, convenient to auto scan and save radio channels.It Supports Auxiliary in audio input.TG179 Bluetooth Speaker MP3 Wireless Stereo With BassHands free callsWorking Range: up to 10MWorking Time: 3 HoursLoudspeaker Output: 5w x 2Frequency Response: 150Hz - 20KHzBattery: 3.7V / 1200mAhCharging: 5V / 500mATF Card Slot & USB Port availableFM Radio