Feature:With touch mouse function、 with all the features of ordinary mouseWith a laser light、 suitable for teaching、 meetings and other places4. Part of the function keys on the keyboard to complete the Fn key plus another key combination5. effective distance 0 to 10 meters6. Compare with traditional silicone keyboard: More sensitive reaction、 Better hand feeling、 Longer service life7. System required: Windows (all)、 Linux (Debian-3.1、 Redhat-9.0、 Ubuntu-8.10、 Fedora-7.0tested) DOS、BOIS、Android pc os、mac os、IOSDescription:1. Keyboard size: 157 * 55 * 13 mm2. Color: Black3. RF 2.4G connection、 max 10 meters distance4. Power supply: DC 3V 1.5V 3A Battery x 2( not included)Package included:1 × keyboard1 × USB charging cable