Bluetooth AUX Receiver Support Memory Card 3.5mm Clip On Wireless Car Stereo Adapter for Wired Headphone Cellphone                  Feature:      1. BT auxiliary receiver, support Memory Card playback, no need to connect mobile phone via BT, easy to enjoy music.      2. Through wireless receiver the phone can connect to the car stereo and play music wirelessly, listen to all the music in the phone.      3.   Plug the headset into the BT adapter, and those devices such as headset stereo without BT function realize wireless BT function.      4. Wireless music adapter, by pairing with BT devices, suitable for mobile phones, tablets, computers and other products to meet your different needs.       5. Clip on wireless AUX music receiver that can be clipped to your collar or waistband for anytime enjoyment of portability.             Specification:             Item Type: BT AUX Receiver  Material: ABS + PC  Built in Polymer Lithium Battery: 200mAh  BT: 5.0  Interface: AUX  Transmission Rate: 24Mbps  Working Frequency: 2400MHz              Package List:     1 x BT AUX Receiver           1 x USB Cable      1 x Manual