Product Parameters: 1. Product size: about 36 * 36 * 8.5mm/1.42 * 1.42 *0.33in 2. Product net weight: about 10.5g 3. Color box size: about 70 * 220 * 20mm/2.76 * 8.66 *0.79in 4. Packing weight : about 21g 5. Connection method: Bluetooth 6. Type of the material: ABS 7. Power supply: CR2032 button battery (Included)