1. Material: plastic 2. Size: about 11x11 cm 3. Weight: about 122 grams 4. Scope of application: keyboards, camera equipment, audio-visual equipment, office electronic equipment, etc. 5. Power supply: 4 x AA batteries (you need to bring your own) 6. Features: compact design, small and exquisite, easy to use, battery-driven, use anytime and anywhere, wide range of applications, durable
