About this item: 【Bluetooth 5.0 Version for Stable Connection】This Aux Bluetooth Adapter for Car features the latest Bluetooth 5.0 technology, which enables long range transmission and stable connection up to 33 feet (10m), allowing you to enjoy a pleasant music environment while driving. 【Enjoy Wireless High Quality music】The Bluetooth Receiver for Car converts non-Bluetooth devices to Bluetooth devices for wireless connection, allowing you to enjoy high quality music anytime, anywhere. It can connect to cars, speakers, stereo systems and headphones. 【Transmitter and Receiver】This Bluetooth car adapter is designed with a mode switch, you can switch between Transmitter and Receiver modes with one key, and it will automatically enter the pairing mode after turning on the switch, which is very convenient to use. 【Built-in HD Microphone】With a built-in HD microphone, this bluetooth aux adapter allows you to answer or hang up phone calls, pause or play music by simply pressing the power button, eliminating the need to operate a cell phone interface and allowing you to drive safely. 【Easy to Carry】The size of this Wireless Audio Receiver for Car is very mini, you can carry this adapter around with you, you can easily take it out and use it immediately when you need it. Specifications: Model: DE01002001 Type: bluetooth transmitter receiverManufacturer model: C28Color: blackMaterial: plasticBluetooth version: V5.0Port: 3.5mm jackBattery capacity: 140mAh (built-in rechargeable lithium battery)Operating frequency: 2.4 (MHz)Charging time: 1 hourCharging mode: USB cableTransmission distance: 10 metersTransmission rate: 100 (Mbps)Suitable for: computer, TV, projector (transmitting mode)/car, speaker, earphone (receiving mode)Product size: 59.5*22*12mm (length * width * thickness)Package weight: 39gPacking size: 103*68*18.3mm Product features:-2 in 1 function: Bluetooth transmission mode: convert wired audio into Bluetooth signal and transmit it to Bluetooth device. Bluetooth receiving mode: Receive Bluetooth signal and transmit it to wired audio through Bluetooth connection. -Connect the 3.5mm audio interface of the TV, and transmit the sound to the earphone via Bluetooth, so that you are not afraid to disturb your family when watching late-night movies (note: it is used in the transmission mode (TX)). -Connect the Bluetooth connector to the car AUX port through the adapter/transfer cable, and connect the Bluetooth to the car audio, you can not only make calls, but also listen to dynamic music, so that your journey is no longer lonely. -High-resolution restoration of lossless sound quality, bringing CD-level music experience. -Built-in rechargeable lithium battery, which can be used for 4 hours with one hour charge. It can be used while charging when the battery is low, which is convenient and worry-free. -Bluetooth 5.0 + EDR can achieve a more stable connection with the device, low power consumption and high rate stable signal transmission, and listening to songs more smoothly. -Small size, no driver required, easy to use. It is suitable for devices with 3.5 mm jacks. Packing list:1* Bluetooth receiver transmitter1* USB charging cable1* 3.5mm audio head1* User Manual