Please note, this item ships from an international seller. Expected delivery is 10-15 days. Specification: Size: 452011mm Bluetooth: 5.0 type audio transmitter/receiver Technology: BT5.0, A2DP, AVRCP (receive mode only) Working range: up to 10 meters/33 feet (without any obstacles) Pairing name: (receiver mode) M135 Transmitter mode: red LED lights up Receiver mode: blue LED lights up Operating frequency: 2.4 MHz Features: 1.Transmitter mode: wirelessly transmit audio from a non-Bluetooth TV, home stereo system or CD player to a Bluetooth headset/speaker/receiver. 2.Receiver mode: wirelessly transmit audio from mobile phones, tablets or computers that support Bluetooth to wired stereo, speakers or headphones. 3.AUX output mode: through the car AUX interface, a car without Bluetooth function can easily play music on mobile phones or tablets. 4.USB output mode: read the USB interface through the car, it is a car without Bluetooth function, it can easily play music on the mobile phone or tablet. 5.Application: car, audio, tablet computer, earphone, computer, Bluetooth TV, etc. 6.Connect it to TV with 3.5/RTC cable and enjoy the film with bluetooth headset,it won't disturb others to rest Package including: 1 x Bluetooth 5.0 audio transmitter/receiver 1 x 3.5 mm auxiliary cable (1 m/39 inches) 1 user manual Visual screen: unique screen design, ZIIDOO Bluetooth transmitter can freely choose the Bluetooth headset or speaker to connect Transmitter Receiver 2-In-1:Universal Bluetooth audio adapter makes your TVs and other devices Bluetooth enabled to stream audio to your Bluetooth headphones, or makes your home stereo Bluetooth enabled to receive the wireless music streaming from your phone and tablet. Works with device which have USB port and 3.5mm port(Notes: 1. only for audio, not for ps4,mouse, keyboards or game controllers,printer, projector. 2.On