Description: BT2IN1 2 in 1 Transmitter & Receiver Upgrade Technology : Unique screen design can choose the headset or speaker to connect.The screen will show whether the product is in TX or RX , and there will also be the name of the connected to the product.You could insert the adapter into a USB directly, or can also insert it into a power adapter, very convenient. 5.0 receiver: Installed with 5. 0 chip, new wireless music receiver has an unrivalled performance with 2 times faster transmission speed, stronger connection stability and wider signal range of 10M than the older version. compatible: This audio adapter support 3.5mm aux audio, and also compatible with all smartphones, audio devices (Bluetooth headphones, speakers and much more). Transmitter receiver : 2 in 1 design, by using this wireless adapter, you can send and receive all of the audio freely and easily. Transmitter enables your TV, AV Receiver, Radio and other home audio source devices to stream music to your headphones or speakers; Receiver lets non-Bluetooth devices like your home stereo or AV Receiver and wirelessly stream music from your cellphone/PC. Specification: profile: V5.0 EDR,A2DP,HSP,AVRCP : V5.0 Transmission Distance: 10m / 33ft Charging: Micro USB 5V/0.5A Audio Port: 3.5mm Color: Black Main Item Size:62*25*13.3mm Package Includes: 1 X Transmitter Receiver 1 X 3.5mm Audio Cable 1 X User Manual