1TX Mode: Bluetooth 5.0 transmitter transmits sound to wireless headphones or speakers via AUX or RCA jack plugged into a non wireless device, such as a TV or MP3 player. 2RX Mode: Bluetooth 5.0 receiver can be connected to wired speakers or car sound input port and receive sound from smartphone via wireless function. 3Low Latency, Wireless Device Connection: 2 in 1 wireless adapter with HiFi stereo sound and low latency; can be connected to wireless speakers or headphones that support A2DP protocol to form a wireless sound transmission network. 4Wide Application: Bluetooth 5.0 transmitter receiver can be used in TV, CD, home theater and other devices, also can be connected to cell phones or computers to play music. 5Stable Performance: 2 in 1 bluetooth aux adapter with stable connection, the latest chip and well designed software. Small size, light weight, easy to carry; brings CD like listening feast. 6Long Battery Life: Bluetooth 5.0 transmitter receiver can work while charging, and the installed battery can support wireless adapter and work 6 hours per full charge. Item Type: Bluetooth 5.0 Transmitter Receiver Material: ABS Battery: Lithium Ion Battery 402030 (Built in) Capacity: 600 mAh Bluetooth Version: V5.0 Input or Output Connection: 3.5 mm Stereo Interface Bluetooth Configuration Files: A2DP, AVRCP Frequency Range: 2.4GHz-2.48GHz Working Distance: > 33 Feet (10m/32.8ft) Operating Time: >6 Hours Bluetooth Transmitter: Add Bluetooth Wireless Capability to your TV, PC, MP3 player, DVD Player and Enjoy Wireless Music and Sound. Bluetooth Receiver: Turn on bluetooth to any speaker, headphone, stereo system. (Each time the device is powered up, the transmitter will automatically connect to the last connected device.) Compatible: Compatible with for Android, for IOS phone system and PAD and all Bluetooth sound devices such as TV, speakers, PC, CD player, for iPhone, tablet, MP3 player or car stereo, etc. 1 x Bluetooth Adapter 1 x 3.5mm Cable 1 x USB Cable 1 x Manual