Don't support TV 3D Built-in high-capacity rechargeable battery Auto power-off function, energy efficiency. Rechargeable, Micro-USB, more convenient. User-friendly electronic circuit design One single button, easy operation. Cool appearance, light design, comfortable to wear without dizziness. High-speed response of high-quality liquid crystal lenses, prevent from eye strain. The appearance of innovative treatment process, to eliminate electromagnetic interference. The frame using ABS and PC material, low energy, low carbon and environmental protection. High permeability rate of perfect quality, no flash smelting, no . With auto Power-off function, stability, energy-efficient Low-power self-detected function, low battery LED flashes to prompt the user when the battery is low. Technical specifications: Charge time: 2-3hours Continuous use: 50hours one time Field frequency: 96Hz-144Hz Transmittance:38 percent 2 percent Don't support TV 3D Cleaning cloth and glasses bag come in random colors, Not accepting designation color: Black Material: ABSandPCandLCD lens Note: Depending on the light, the color of the glasses lenses may be different from the picture, but this does not affect Package Contents: 1 x 3D Glasses 1 x USB charging cable 1 x cleaning cloth 1 x Glasses bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.