Avantalk BTRC-201 is a Bluetooth stereo audio receiver. It easily works with the speaker which has 3.5mm line-in jack for wireless playing music from Bluetooth A2DP enabled mobile phone and other Bluetooth A2DP audio devices. PLUG & PLAY, no software installation required and very simple to use, BTRC-201 allows your audio devices to receive stereo audio via Bluetooth wireless expediently. * Bluetooth V2.1
* Class 2, 10m opration range
* A2DP, AVRCP profile support
* Frequency response: 2.4GHz-2.4835GHz
* Receiving sensitivity: -74±4dB
* Charging input voltage: DC 5V
* Working time: Up to 12 hours
* 250mA rechargeable Lithium-ion battery
* Charging time: About 2.5 hours
* Dimension: 45×32×8mm
* Weight: 14g