... high-speed transmission technology, USB1.1 interface receiver;2. up to 10 ± 2 meters effective distance;3. Frequency-hopping ... customer requirements for voltage regulation;7. support for all key wake-up;8. has the reconnection function;9. Sensitivity: accurate to ... 14. keyboard functions: If the number, direction, addition, subtraction, up / down, Home, End buttons;15. compatible Windows98/Me/NT/2000 ...