PR-06S 4-keys Smart Wireless Optical Mouse with Stylus Pen Function, Support Voice Operation Translation Feature: 1. Moving operations is easier than normal mouse. 2. The voice function triggers the key value. All the voice functions are triggered by this key. When the voice is spoken, the corresponding voice function can be realized. 3. Voice speaking, voice typing (voice input text) is triggered in the red indicator state, voice search (custom command) is triggered in the blue indicator state, and the voice translation is triggered in the purple indicator state. 4. Voice three mode function switch, press the left button, move the wheel, each time you scroll one frame, it will be converted into a mode, delete function, you can choose to delete once, select the unwanted content, press and hold the right button, then Keep pressing the left button to delete unwanted content. Select the right button and press the left button to delete. specification: 1. Number of keys: 4. 2. Resolution: 80012001600 DPI. 3. Switch life: 5000000 times. 4. Current: 1.5V 15mA. 5. RF frequency: 2402-24080MHz. 6. Battery: 1 x AAA battery (for 6 months). 7. Material: ABS + silica gel. 8. Applications: computers, smart TVs, set-top boxes, etc. 9. Support system: Windows 2000XPVista7, Android, Mac OS, etc. 10. Size: 14.5x2.2x1.5cm. 11. Product weight: 25g.