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HAPTIC FACE CUSHION FOR HMDS With 6 vibration points. Dimension l (Outer) 8.7 x 4.1 inch (Inner) 6.7 x 2.1 inch Weight l 91 g Battery l 3.7V, 400mAh, 1.5Wh Connection l Bluetooth Low Energy technology(BLE) Compatibility l HTC VIVE, VIVE PRO, Windows MR, Oculus