Dimension of Jeecoo A10 USB Speakers - mini computer speaker weighs 0.78lb/350g; dimension is 4.7*2.7*4.7in/12*7*12cm. Length of audio cable is 4.2feet/130cm. Easy-Access Control - click “Mode” button to switch Bluetooth input, or 3.5mm AUX input; press it 3 seconds to reset Bluetooth connection; adjust the volume knob to power on/off, and turn up/down the volume level. Desktop Speakers with Universal Compatibility - USB cable is for USB-powered, 3.5mm AUX cable is to connect the headphone jack on your devices, Bluetooth connection is to ensure mini desk speaker is widely compatible with most devices. (Note: After connecting, you need to volume up the sound of your PC/phone/tablet again, as the sound of the device will automatically volume down to 15%-20% after connecting.). PC Speakers with Clear Sound - mini laptop speaker equipped with a high-sensitivity & dynamic 2.5inch driver unit, tuned by acoustical engineers, produces impressive good quality audio; enhanced sound will be heard. A Single Monitor Speaker - single computer speaker is smaller than a palm, and so light that you can carry it together with your laptop, let it play the audio whenever and wherever you need.