Welcome to our shop! We are pleased to introduce our portable wireless audio transmitters and receivers, which are excellent solutions for all your wireless audio needs. In transmitter mode, you can easily stream audio from a non-bluetooth TV, stereo, or CD player to a bluetooth headset or speaker. In receiver mode, you can wirelessly stream audio from bluetooth-enabled phones, tablets, or computers to wired stereos, speakers, or headsets. Switching between transmitter and receiver mode is as simple as flicking a switch, and you can easily connect using the latest bluetooth technology and the included 3.5mm/0.1in audio cable. Our transmitters and receivers have a powerful wireless audio streaming function and are highly portable. You can conveniently pack them in a backpack or laptop bag and take them with you wherever you go. These receiver transmitter adapters are widely compatible and can be used with your computer, laptop, stereo, headset, smartphone, MP3 player, CD player, and more. Product Details: - Condition: 100% Brand New - Item Type: Bluetooth 5.0 Audio Transmitter Receiver - Color: As Picture Shown - Dimensions: Approx. 44mm/1.7in (Length) x 44mm/1.7in (Width) x 12mm/0.5in (Height) - Weight: Approx. 78.0g/2.8oz - Model: KN321 - Technologies: BT5.0, A2DP, AVRCP (receiver mode only) - Operation Range: Up to 10m / 33ft (without any blocking objects) - Pairing Name: KN321 - Charging Time: 2 Hours - Battery Type: Li-Polymer (200mAh) Package Includes: - 1x Bluetooth 5.0 Audio Transmitter Receiver - 1x Micro USB Power Cable - 1x RCA Cable - 1x 3.5mm Aux Cable - 1x User Manual 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service. Thank you for choosing our wireless audio transmitters and receivers. We are confident that they will meet all your wireless audio needs.