Dual fan design, bid farewell to the heat and quickly dissipate heat. Active air circulation facial interface compatible with Quest 2. Includes a replacement official face interface and a rechargeable Micro Quiet Ventilation Head, replacement face shield. Equipped with a micro turbo fan, it can quickly exhaust the air inside the mask, prevent the lens from fogging, and relieve heat accumulation. Rechargeable design, 600mAh battery can work continuously for 4-5 hours after fully charged. With noise reduction technology, the dual-drive heat dissipation effect is stronger and the use time is longer. Charging Time: about 2h Endurance Time: 1 Gear about 4-5H, 2 Gear 3-4H, 3 Gear about 1.5H Material: ABS Color: White and Black Size: 191 x 115 x 91mm Weight: 350g Package List: 1 x Dual Fan Air Circulation Mask