Working distance up to 10 meters. Handsfree Function: support phone call function.It is an True Wireless Stereo speaker,supports 2 same devices wireless connectionMore Playing Modes: USB / Micro SD (TF card),Supports music formats in MP3, WAV.FM Radio: delivers high sensitive radio signals.Rechargeable Battery: Li-ion battery built in, 1200mAh capacity offers long playback time. FM Radio: delivers high sensitive radio signals With the Bluetooth, it sends good interference-free performance, high data rate, high quality and efficiency.Wireless Speaker: supports Wireless technology, enabled devices such as mobile phone, laptop, desktop, tabletsWorking distance up to 10 meters. Handsfree Function: support phone call function.It is an True Wireless Stereo speaker,supports 2 same devices wireless connectionMore Playing Modes: USB / Micro SD (TF card),Supports music formats in MP3, WAV.FM Radio: delivers high sensitive radio signals.Rechargeable Battery: Li-ion battery built in, 1200mAh capacity offers long playback time. FM Radio: delivers high sensitive radio signals With the Bluetooth, it sends good interference-free performance, high data rate, high quality and efficiency.Wireless Speaker: supports Wireless technology, enabled devices such as mobile phone, laptop, desktop, tablets...Working distance up to 10 meters. Handsfree Function: support phone call function.It is an True Wireless Stereo speaker,supports 2 same devices wireless connectionMore Playing Modes: USB / Micro SD (TF card),Supports music formats in MP3, WAV.FM Radio: delivers high sensitive radio signals.Rechargeable Battery: Li-ion battery built in, 1200mAh capacity offers long playback time. FM Radio: delivers high sensitive radio signals With the Bluetooth, it sends good interference-free performance, high data rate, high quality and efficiency.Wireless Speaker: supports Wireless technology, enabled devices such as mobile phone, laptop, desktop, tablets...