Long-lasting Battery Life, Bass Running. Fast heat dissipation, the running noise is low. Extending the life of the phone and battery. Excellent Cooling Effect. Easy To Use -- Silicone mat on the edge of the cooler, firmly absorb the phone to avoid the phone falling off and scratching. Easy To Carry --The fuselage is compact and convenient to carry, can be used anytime, anywhere, without continuous fever. Does not block the screen, it is the best choice for you to play for a long time and chase dramas.