ITEM NAME:For TV PC Head TX8 2 In 1 Bluetooth 5.0 Audio Transmitter Receiver Adapter Descriptio n Description: 1. Features BT V5.0 for superior wireless performance (backwards compatible with BT V3.0, and V2.1). 2. Have memory for the paired devices. 3. Maximum transmission distance more than 33 feet, and it can last 15 hours on full charge, which will take 2 hours with the USD charging cable. 4. All-in-one solution for BT receiving and transmitting RX mode: Easy pairing with BT enabled smartphones, tablets, desktops and laptops. TX mode: Easy pairing with BT headphones, earbuds, speakers and other BT enabled audio systems. Plug and Play - no driver or software needed. Feature: Boot: Audio port insert 3.5 mm audio line boot immediately(blue light, on green light flashes at the same time). Pair connection: RX mode pairing: Turn on BT to select "RX" receiving mode and enter BT pairing mode(blue indicator flashes). Turn on the phone “settings†and search for BT devices to find BT devices "DL-LINK" to select and pair connections. Successful connection (blue light flashing slowly). TX mode pairing: Turn on B, select "TX" launch mode, and enter BT pairing mode(green indic- ator flashes). Turn on the BT receiving device (BT speaker, BT headset, etc.) and wait a few seconds. BT and the receiving device will automatically connect (Green indicator slow Flashes). Mode Switch: Switch TX button to change to transmitting mode,3.5mm audio port is “input†. Switch RX button to change to receiving mode,3.5mm audio port is “output†. The light indicates: Turn on: Blue and green light flashes a time. Charging: Red light, full charge: Led off. RX mode pairing: Blue light fast flashes; paired successfully (Blue light slow flashes). TX model pairing: Green light fast flashes; paired successfully: Green light slow flashes. Shut down: pull the audio line from the audio port; If you don't match it for a long time, the device will shut down automatically. Specifications: Material: .TX8 2 In 1 Bluetooth 5.0 Audio Transmitter Receiver Adapter for TV PC Headphones. TX mode pairing: Turn on B, select "TX" launch mode, and enter BT pairing mode(green indic- ator flashes). Turn on the BT receiving device (BT speaker, BT headset, etc.) and wait a few seconds.