Unlimited Rechargeable Wireless Controller. 2.44 Ghz operating frequency for precise game control. 60 hours of game time with rechargeable battery pack. 8 Analog action buttons & 2 analog sticks, with Turbo function buttons. Dual vibration motors. 16 player auto sensing technology allows up to 16 players without interference. Controller includes sleep mode, which shuts off controller after 5 minutes of idle time.