1. Size: 192 × 35 × 50 mm 2. Weight: 142g 3.
Bluetooth version: 4.0 4. Bluetooth transmission distance: 10 meters 5. Applicable system: Android version 4.3 or above, iOS version 5.1 or above 6.
Support cell phone size: 4.7-6.2 inches 7. Small size, easy to carry