- SMART SENSOR DESIGN: IPX5 waterproof protection guards against water and humidity and leaves surfaces free of water stains after rinsing. Powered by 2 AA batteries. The lid opens automatically when motion is detected near the sensor for about 0.3 seconds, and closes automatically after 5 seconds if no movement is detected. To keep the lid open, lightly press the sensing button on the right; press again to close. - VERSATILE AND EFFICIENT: Reduces unnecessary openings to conserve battery life, helps contain odors, and provides a comfortable use experience. Slim, space-saving profile blends with furniture and adds a modern decorative touch to your living space. - WIDELY APPLICABLE: Suitable for kitchen, bedroom, bathroom, living room, study, office, hotel, playroom and more; compact design fits in tight spaces. - MATERIAL AND SIZE: Durable plastic; lightweight and resistant to cracking and aging. Overall size 10.63 x 6.69 x 11.81 inches (L x W x H); capacity 4.5 gallons (16 L).