1. For PSII wireless connection,the range reach to 15m 2. 8 function key and 8 direction key 3. 4-axle and 12 key with "turbo"and "clear" function 4. 8 function key with write program function 5. Swift between digital and analog model with LED indicate 6. Indicate RX sign connect, the signal also can be connected by force 7. Strenghen dual vibration function 8. Rubberized and textured hand grips for comfort and control 9. With three 3A1.5V cell