Features: 2 in 1 Bt 5.3 Audio Adapter: The Vaorlo Bt-5.3 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. And you can also make your non-Bluetooth-compatible headsets and speakers receive audio from Bluetooth-compatible audio sources (mobile phones, tablets, etc.). You can easily switch between transmitter and receiver modes with the push of a button. Support Dual Stream,Multipoint Connect: Bttransmitter function,can connect 2 Bt headsets at the same time. Bt receiver function,can connect 2 smartphones. Auto On: When you connect to the power, So its very good for to use in car or other you want it have auto on functions. Easy to Use: Just tap the switch to switch between transmitter and receiver modes. Easy connection using advanced Bttechnology and 3.5mm audio cable (included) and 2RCA Audio Cable. Bt 5.3+EDR: By inserting a Bt adapter into a non-Bluetooth-compatible device to achieve wireless connection with various Bluetooth-compatible devices. It can be stably connected to TVs, stereos, PCs, MP3s, cars, speakers, earphones, smartphones, tablets, and reaches a maximum range of 50 feet (15m) outdoors and a maximum range of 33ft (10m) indoors. Space-Saving Design: Ultra-compact and lightweight for convenient use with a variety of devices. Auto-Connect: This Bt Adapter will automatically connect to the last paired Bt device when you turn it on the next time. Super Stable Connection: Our Bt audio adapter is fitted with a Bt 5.3 chip for steady pairing, fast transmission and a wide signal range (33 feet). With the 3.5mm AUX port and 2 RCA port, it can be connected to non-Bt car audio systems, home stereo, wired headphone/speaker, Amplifier/Home Theater.etc. Then you can enjoy wireless Hi-fi music streaming! Receiver Mode For: Car Kit/Wired Speaker/Home Speaker/Speaker Power amplifier/Headphone ect... Transmitter Mode For: TV/PC/Projector/Power amplifier/TV Box /BtHeadphone/Earphone/Bt Speaker ect... USB Power Supply: THe 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 Bt transmitter is powered on, you don't have to worry about running out of power while listening to music. (We recommend that you use a 5V1A charger to power this adapter to avoid insufficient voltage and current, which will cause the adapter to produce current sound during use.) Product Specification: Type: Multipoint 2-IN-1 Bt Audio Adapter Colour: Black Input Voltage: DC 5V Transmission Distance: Maximum of 10 meters/33 feet (no obstacles) Bt Version: 5.3+EDR Interface: 3.5mm AUX Stereo/ 2 RCA Stereo Audio / Mode Switching: Switch the mode by switching the Button TX/RX switch. Size: About 110x26x60mm Range of Use: This Bt adapter can be used in almost all digital products with audio input/output (3.5MM/2RCA audio interface), just connect the audio to the input/output port. Receiver Mode For: Wired Speaker/Home Speaker/Power amplifier/Headphone/Car kit ect... Transmitter Mode For: TV/PC/Projector/Power amplifier/TV Box /Bt Headphone/Earphone/Speaker ect... Package Included:(Standard Edition) 1x Multipoint 2-IN-1 Bt 5.3 Audio Adapter 1x 3.5mm Aux Cable 1x TypeC Charge Cable 1x RCA Cable 1x User Manual