2in1 Bluetooth transmitter and Bluetooth receiver, 3.5mm audio adapterThe product is shipped based on the color or size of the main image of the product page, if you have special requirements, please leave us a message.Description:*****1. Output Interface: 3.5mm*****2. Audio Bluet Protocol: AVRCP, A2DP*****3. Bluet: V5.0*****4. SNR: >90dB*****5. Battery Capacity: 3.7V/200mAh*****6. Transmission Distance: 10 m*****7. Frequency Range: 2.402GHz-2.480GHzFeatures:***** 1. This portable, lightweight wireless audio transmitter & receiver is an ideal wireless audio solution for a wide range of situations and uses.***** 2. Transmitter mode. Wirelessly streams audio from your non-Bluet TV, home stereo system, or CD player to your Bluet headphones or speakers.***** 3. Receiver mod. Wirelessly streams audio from your Bluet-enabled phone, tablet, or computer to your speakers, or headphones.***** 4. BT5.0 supports stable and effective wireless transmission.***** 5. Wide Compatibility. With the included 3.5mm cable and 3.5mm to RCA cable, this adapter can widely be used on your computer, laptop, home stereo system, headphone, smartphone, MP3 player, CD player, etc.