1、Using 5.0 Bluetooth chip, easy operation, fast connection, stable signal. 2、Two Bluetooth modes, four connection methods. TX mode Bluetooth audio transmission, RX mode Bluetooth audio reception. 3.5 audio line transmission, computer USB transmission, plug‑in U mode reception, 3.5 audio line reception. 3、Drive‑free plug‑and‑play design, compact, fast connection, simple operation 4、Barrier‑free 10m transmission to meet the needs of daily wireless use. 5、Smaller and lighter, small body, Bluetooth audio receiver transmitter, integrated transmission and reception, compact body and convenient to carry. 6、Bluetooth receiving mode, widely compatible with a variety of devices. Simple connection, wired audio to wireless audio. 7、Bluetooth transmission mode, widely compatible with a variety of devices. Simply connect to enjoy wireless audio. 8、Wired speakers become Bluetooth speakers. Speakers that support plug‑in U function can be directly plugged into USB transmission, and mobile phone search product pairing becomes Bluetooth speaker. 9、Your car's Bluetooth is broken or there is no Bluetooth, you can use the receiving mode to increase the wireless Bluetooth audio. Plug and play, it does not support the available audio cable to connect to the AUX interface. 10、Desktop computers use Bluetooth transmission, USB direct audio transmission, and simulate computer sound card to wirelessly transmit computer audio to Bluetooth headsets or speakers. 11、Traditional TV uses Bluetooth transmitter, USB 5V power supply, 3.5MM audio cable connection, plug and play, wirelessly transmit TV audio to Bluetooth headset or speakers.