[Transceiver Mode]: Transmitter Mode: Wirelessly transmits audio from a Bluetooth TV, home stereo system, or CD player to a Bluetooth headset or speaker. Receiver Mode: Wireless transmission Audio is transmitted from a Bluetooth-enabled mobile phone, tablet, or computer to a wired stereo, speaker, or headset. There is no microphone. [Easy operation]: You can switch between transmitter mode and receiver mode with a single tap. Easy to connect using advanced Bluetooth technology and 3.5mm audio cable (included). Ultra Portable Audio Stream: Only 44 mm (1.73 inches) wide and weighs only 18 grams (0.63 ounces), but with a powerful wireless audio stream. Slide the transmitter and receiver into your backpack or laptop bag for easy portability. [Wide compatibility] This receiver / transmitter adapter can be widely used with computers, laptops, home stereo systems, headsets, smartphones, MP3 players, the included 3.5mm cable and 3.5mm to 2RCA cable. , CD player, etc. Warranty: Applies to a single Bluetooth signaling device, but not to earplugs of two Bluetooth signaling devices such as AirPods. We promise a 30-day refund and a 90-day warranty. If you have any quality problems with the products you purchased here, please contact us.Produced by anbaole brand