10x42 Compact BaK-4 Binoculars Durable full-size binoculars for bird watching. It can be used at night, but not in complete darkness. Ideal for concerts, opera, sightseeing and astronomy viewing. 【Durable and Life Waterproof】 The compact binoculars are made of premium ABS material, coated with anti-slip rubber armor for shock-resistance and a firm, comfortable grip.