1. Shell material: plastic 2. Powerful vibration mode, put it under the pillow to transmit the shock feeling 3. The light and volume can be adjusted steplessly, which is convenient to use 4. With two 5V USB Output interface, can charge other products 5. Two power supply methods for the alarm clock itself: DC 5V or 3 AAA batteries (not included) 6. Alarm clock 1 indicator light: on (light on) / off (light off )/snooze on (light flashing) 7. Alarm clock 2 indicator light: on (light on)/off (light off)/snooze on (light flashing) 8. Morning and afternoon time indicator: Afternoon (PM light on)/AM (AM light on) 9. A set of three-position toggle switches to select alarm 1, alarm 1+2, and alarm 2 10. A set of four toggle switches to select alarm Arrival reminder method: vibration output + alarm + flashing light, vibration + flashing light, alarm + flashing light 11. When all alarms are turned off, when no button is pressed, the alarm will last for 5 minutes (alarm duration Independently adjustable: 1-30 minutes) 12. Snooze button (default 10 minutes snooze, adjustable snooze time: 1-30 minutes) 13. Weight: clock 215g, vibrator 147.5g 14. Dimensions: clock 14.5x6.5x15 cm, vibrator 10.5x3.9x10.5 cm