Bluetooth Transmitters features: bluetooth 5.0 Wireless Dongle Adapter Receiver Transmitter USB AUX FM Output Support Navigation for Computer PC Laptop Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Features: bluetooth 5.0The bluetooth adapter adopts bluetooth 5.0 chip, which owns 10m strong signal transmission, high quality music effect and can be automatically connected with devices after first connection when it turns on. Receiver and Transmitter FunctionThe bluetooth adapter with AUX, USB and FM three output modes, can be used as bluetooth receiver and transmitter both and is compatible for more device, bringing you wonderful wireless using experience. Storage FunctionThe bluetooth adapter supports max 64GB TF card(Not Included), with max 20 mb/s reading speed, convenient to transfer picture, files and so on, compatible for windows, for mac OS, for linus system. Hands Free Call & NavigationThe bluetooth adapter with built-in microphone can bring you much convenience on voice navigation and free-hands calling operation. Easy To OperateThere are three mechanical buttons for you to control the Bluetooth adapter easily. You can easily switch songs, adjust the volume, pick up or reject coming call quickly. Plug and PlayThe bluetooth adapter needs no drive to install, plug and play. Long Working TimeThe bluetooth adapter with built-in 160mah big capacity battery can support 8 hours working time, equivalent 300 songs time, with only one hour charging time. Convenient Indicator LightThe three indicator lights let it clear for you to know the bluetooth adapter's power, TF card, FM, receiver and transmitter working stage. Scope of ApplicationThe bluetooth adapter is widely suitable for speaker, car, laptop, computer, TV, projector, bluetooth earphone, bluetooth speaker, car video, smart phone and so on. PackageIncluded: 1 x bluetooth Adapter1 x Manual1 x AUX CableSpecificationType6 IN 1 bluetooth AdapterMaterialPC + ABS + Electric Componentbluetooth Version5.0Voltage110-220VFrequencyFM 87.8/88/91.6Transmission Distance10 MetersTF Card MemoryMax 64GB(Not Included)InputMax DC 5V/ 2.1AInterface3.5mm + USBProtocolA2DP, AVRCPBatteryBuilt-in 160mAh BatteryCharging TimeApprox. 1 HourStandby TimeApprox. 30 DaysSize75 x 25 x 10mm/ 2.95 x 0.98 x 0.39inch(LxWxH)com Weight15gBasic Functionsbluetooth Receiver, bluetooth transmitter, TF Card Playing, Data Storage, Call and Navigation, Button Operation