Fangrui Product Features 1、This car audio receiver adapter uses Bluetooth 5.0, the signal is stable and not easily interrupted. 2、Multiple devices are fully compatible, so that your audio device can be converted to Bluetooth wireless transmission in seconds. 3、Listen to songs wirelessly, without loss of sound quality, achieve a high degree of restoration of high quality music, and hear more details. 4、This car audio receiver adapter can be standby for a long time, and the transmission power consumption is low. 5、In the receiving mode, Bluetooth signals are received and transmitted to wired audio through the Bluetooth connection. The transmission mode converts the wired audio into a Bluetooth signal and transmits it to the Bluetooth device for output. Specification Item Type: Bluetooth Audio Transmitter Receiver Material: ABS Output Interface: Approx. 3.5mm/0.1in Audio Bluetooth Version: 5.0 Transmission Distance: Approx. 10m/32.8ft Frequency Range: 2.402GHz-2.480GHz Battery Type: Lithium Battery Battery Capacity: 300mAh (Inclusive) Package List 1 x Receiver1 x 3.5 To 2RCA  Line1 x 3.5 Audio Cable1 x Charging Cable1 x Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store