Feature: 1. Can also make your non-Bluetooth-compatible headphones and speakers receive audio from Bluetooth-compatible audio sources (phones, tablets, etc.). You can easily switch between transmitter and receiver modes at the touch of a button. 2. Bluetooth-compatible 5.0+EDR: By inserting the Bluetooth-compatible adapter into the non-Bluetooth-compatible device, it realizes the wireless connection with various Bluetooth-compatible devices. It can be stably connected to TVs, stereos, PCs, MP3s, cars, speakers, headphones, smartphones, tablets, with a maximum range of up to 50 feet (15m) outdoors and up to 33 feet (10m) indoors. 3. Easy to use: Just tap the switch to switch between transmitter and receiver modes. Easily connect using advanced Bluetooth-compatible technology and 3.5mm audio cable (included). 4. USB power supply: USB has power supply function. During use, it must be poweRed through a USB interface (such as a power adapter, PC, car charger, etc. USB interface). As long as the receiver of the Bluetooth-compatible transmitter is poweRed, you don't have to worry about running out of power when listening to music. 5. Portable Bluetooth-compatible Adapter: The compact design and portable features allow you to carry the audio transmitter with you, ideal for outdoor activities such as running and hiking. Description: Name: Car Bluetooth-compatible Type: Audio Bluetooth-compatible Adapter Color: Black Input voltage: DC 5V Transmission distance: up to 10 meters / 33 feet (without obstacles) Bluetooth-compatible version: 5.0+EDR Input interface: 3.5mm audio Driver: No need to install Transmission mode: Red LED light on Receive mode: Blue LED light on Mode switch: switch the mode by toggling the TX/RX switch, click the button Scope of use: This Bluetooth-compatible adapter can be used for almost all digital products with audio input/output (3.5MM audio interface), just connect the audio to the input/output port. Packing list: 1 x 5.0 Bluetooth-compatible receiver transmitter 1 x audio cable 1 x user manual Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks. USB has power supply function. Transmission distance: up to 10 meters / 33 feet (without obstacles). 3-in-1 Transmitter Receiver: USB Bluetooth-compatible 5.0 Audio Transmitter Receiver can stream audio from non-Bluetooth-compatible audio sources (TV, PC, MP3, CD player or book reader, etc.) to Bluetooth-compatible headphones and speakers. Easy to use: Just tap the switch to switch between transmitter and receiver modes. Ideal for outdoor activities such as running and hiking.