... Clear function 2 vibration engines, dual vibration, 2.4GHz wireless technology, max working distance reaches 10 me 1. Compatible ... + 2 analog sticks 3. Turbo, Clear function4. 2 vibration engines, dual vibration, 5. 2.4GHz wireless technology, max working distance ... reaches 10 meters.6. 650mA 3.7V Built-in Lithium batteries. video games