3 in 1 USB Bluetooth-compatible 5.0 Audio Transmitter Receiver 3.5mm AUX Wireless Music Adapter for TV PC Car Speaker Headphones Feature: 3-in-1 transmitter receiver: USB Bluetooth-compatible 5.0 audio transmitter receiver can transmit audio from non-Bluetooth-compatible audio sources (TV, PC, MP3, CD player or book reader, etc.) to Bluetooth-compatible headsets and speakers. You can also enable non-Bluetooth-compatible headsets and speakers to receive audio from Bluetooth-compatible audio sources (mobile phones, tablets, etc.). You can easily switch between transmitter and receiver modes by pressing a button. Easy to use: just tap the switch to switch between transmitter and receiver modes. Use advanced Bluetooth-compatible technology and 3.5 mm audio cable (included) to easily connect. Bluetooth-compatible 5.0 + EDR: Insert the Bluetooth-compatible adapter into non-Bluetooth-compatible devices to realize wireless connection with various Bluetooth-compatible devices. It can be stably connected to TVs, stereos, PCs, MP3s, cars, speakers, headphones, smartphones, tablets, and reaches a maximum range of 50 feet (15m) outdoors, and a maximum range of 33ft (10m) indoors . USB power supply: USB has a power supply function. During use, power must be supplied through USB ports (such as power adapter, PC, car charger and other USB ports). As long as the receiver of the Bluetooth-compatible transmitter is turned on, you don't have to worry about running out of power while listening to music. Portable Bluetooth-compatible Adapter: The compact design and portable function allow you to carry the audio transmitter with you, which is very suitable for outdoor activities such as running and hiking. Specification: Colour: Black Input voltage: DC 5V Transmission distance: up to 10 meters / 33 feet (without obstacles) Bluetooth-compatible version: 5.0 + EDR AUX interface: 3.5mm Driver: plug and play Transmitter mode: red LED light on Receiver mode: blue LED light on Mode switching: switch the mode by switching the TX/RX switch, click the button Range of use: for almost all digital products with audio input/output (3.5 mm audio interface), just connect the audio to the input/output port. Product size: 45*20*10mm Product weight: 5g Packing size: 150*95*18mm Gross weight: 20g Note: There may be slight size deviations due to manual measurement, different measuring methods and tools. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Packages: 1 X USB Bluetooth-compatible Audio Adapter 1 X 3.5mm Audio Cable 1 X Manual