Pairing methods1) When the transmitter is connected to the game console, it will turn on automatically2) Place the Bluetooth headset near the transmitter, preferably at a distance of 1 meter3) Turn on the Bluetooth headset and put it into pairing state, then connect the transmitter to the Nintendo Switch or PlayStation 4 game console, enter the pairing state (blue indicator light flashing) and automatically pair it with the Bluetooth headset. After successful pairing, the blue light stays on4) When the transmitter is turned back on, it automatically connects to the last successfully connected Bluetooth headset5) When you double-click the transmitter's pairing button, the Bluetooth connection will be disconnected and the pairing status will be re-enabled (blue light flashing). At this time, double-click the pairing button again, the transmitter will automatically connect to the previous Bluetooth headsetNotes1) The transmitter does not support the microphone function, and the microphone function of earbuds with microphones is also invalid. The microphone accessory must be connected when using the microphone function2) The transmitter can only support a one-to-one connection. For security reasons, gaming while charging is not supported when connected to the Nintendo Switch game console3) The transmitter uses 2.4g wireless signal transmission. Please do not use it near high-power electrical appliances (such as induction cookers and microwave ovens) so as not to interfere with the normal use of this product4) If you want to use the transmitter on the PlayStation 4 game console, you must first connect the transmitter to the Type-C to USB OTG adapter or cable, connect it to the PlayStation 4 game console via the USB port, and then pair the Bluetooth headphones5) If you want to use the Connect Bluetooth headset to the transmitter, please turn off the Bluetooth function of other devices and make sure the Bluetooth headset is disabledSpecificationsModel: SWO1Bluetooth Version: 5.0+EDRluetooth Protocol: A2DP Frequency Range: 2.402 GHz - -2 480 GHzSNR: >90dOperating Voltage: 5 Input: Type-C / USBoperating Range: Up to 10 mDimensions: 47.8 x 27 x 7.85 mm (L x W x H)