Item Type: Receiver/Transmitter Model: X01 Technology: BT5.0, AVRCP (receiver mode only), A2DP Operating Range: Maximum 10m /33ft (no obstructions) Pairing Name (receiving mode): X01 Transmitter Mode: Red LED light on Receiver Mode: Blue LED light on Size: Approx. 23x48mm/0.9x1.9in Mode Switching: 1. If the device is in a certain mode for a long time, it needs to be powered on twice to switch to another mode. 2. If the device has just switched modes, just power it on for once to switch to another mode immediately,. Pairing Method: RX mode: Pairing name: X01, find X01 in the Bluetooth settings of the phone to be paired. The blue light flashes during the pairing process, and stops after the pairing is successful. Connect the product to an audio device with a 3.5 audio cable. TX mode: TX mode will automatically search for other Bluetooth receiving devices (such as Bluetooth headset, Bluetooth speaker, Bluetooth receiver, etc.), the red light flashes during pairing, and stops after successful pairing. Connect the product to a device such as a TV with a 3.5 audio cable/RCA audio cable. 1、This portable, lightweight wireless audio transmitter and receiver is the ideal solution of wireless audio transmission for any situation. 2、Strong wireless audio transmission function. Easily carry the adapter with you by putting it into a backpack or laptop bag. 3、Transmitter mode: Wirelessly transmits audio from a non-Bluetooth TV, home stereo system, or CD player to a Bluetooth headset or speaker. 4、Receiver mode: Wirelessly transmits audio from a Bluetooth phone, tablet, or computer to wired stereo speakers or headphones. 5、Wide compatibility. Applicable to computer/laptop/tablet/home stereo system/headset/smart phone/MP3 player and CD player with the 3.5mm cable. 1 x Receiver/Transmitter 1 x 3.5mm Cable 1 x User Manual