Small size, light weight. Designed according to ergonomic. Settled three-point fillet can reduce the pressure of long-time wear to the head. High softness, ventilate and environmental sponge fit the contours of the face, more comfortable, less ambient light. Customized eyeglass, myopia below 400° needn't to wear glasses. Built-in 40CH 5.8GHz A/V automatic search receiver. Two groups of standard 800mAH 7.4V (2S) Lipo battery, with power display function, supports USB 5V charging, long life. So buy this product and Get 13% OFF Eachine VR-007 5.8G 40CH HD FPV Goggles Video Glasses 4.3 Inch With 7.4V 800mAh Battery.