Original Lenovo TS33 For Desk Computer Subwoofer AUX Bluetooth 5.0 Speaker 360 Home Movie Surround Sound Bar Audio Speaker Specifications Speaker specifications: 2 inches Audio response: 80Hz~18KHz Audio input: Bluetooth/AUX Rated input: 5V 500mA Features 1Easy to use, space-saving, with 2.0-channel stereo sound 2European-style box design, unlimited sound field, wider 3The cavity conforms to the principle of acoustic design, has a soft tone and distinct layers 4Green low-energy digital power amplifier, high efficiency and energy saving 5USB power supply cable plug, can be directly inserted into any USB port 6Can be connected to any audio source using a 3.5mm standard plug How to use Bluetooth 1: Plug in the USB power supply 2: Turn on the Bluetooth function of the mobile phone and search for the Bluetooth device name “Lenovo thinkplus-TS33" 3: Manually click on the device name, after the connection is successful, a tone will sound 4: Manually disconnect the Bluetooth connection, the prompt sounds 5: When the Bluetooth is disconnected, the audio input mode (AUX) can be used normally Volume adjustment Turn the knob to adjust the volume three.Interface and socket function Audio output socket: Plug into the PC computer audio output socket to ensure the audio output Computer USB interface: plug into a PC computer to ensure power supply