Features:

1) Compatible with Xbox 

2) Universal 2.4GHz high frequency

3) No angle limit 

4) One transmitter and one receiver 

5) Could be extended to 20 users 

6) Provides:

    a) Turbo/slow/mapping/programming function 

    b) Support digital / analog mode

    c) Four channels for selection by dip switch

    d) Vibration motor on/off switch

    e) Use 3 AAA batteries, more than 18 hours playing time 

    f) 17 buttons, 2 analog sticks, 2 LED indicator