1. Material: ABS, electronic components 2. Number of keys: 22 keys 3. Bluetooth version: 5.0 4. Button Technology: X Architecture 5. Power supply mode: DC 3.0V 6. Working voltage: 3.0V 7. Battery capacity: AAA battery x 2 (shipping without battery) 8. Ergonomic angle design, the wrist is naturally relaxed, effectively relieve fatigue 9. Anti-slip silicone pad design on the back, stable and not easy to slide 10. Compatible with various devices 11. Product size: 12.3 x 8.5 x 2.2 cm 12. Product net weight: 120 grams
