1. Shell material: plastic 2. Display type: number 3. Package size: 9x3.4x7.7cm 4. Block smart small alarm clock, integrated sleep night light, snooze alarm clock, multi-function clock 5. Compact and portable for travel 6. Two sets of alarm clocks, switch freely, and set the alarm clocks for working days and rest days 7. Large button design, easy to operate with one hand, functions at a glance 8. Rechargeable and more durable, built-in 1200mA lithium battery, can be used with external power supply or charging