Features: 1TWO OPERATING MODES: Gravity timer has gravity sensing and manual modes, one second flip timer, no need to set up at startup, built in gravity sensing chip, you can rotate the screen to different modes for quick timing, easy to operate. 2WIDE SCENES: Cube timer is a helper for time management, scientific timing method, 99 minute positive or negative countdown, help you track time on time, personalized time, study, work, home, convenient for different timing scenes. 3SILENT RUNNING: Digital cube timer has adjustable sound level, 0db, runs quietly, ensuring that work and study are not disturbed. Three modes are available, so you can adjust it according to your needs. 4LOW POWER CONSUMPTION: Gravity timer adopts Type C charging, low power consumption, built in 500mAh, slow power consumption, normal can be used for 68 months, no need to frequently charge and replace the battery. 5PREMIUM MATERIAL, COMPACT DESIGN: The digital cube timer is made of durable and environmentally friendly plastic, delicate touch, rounded edges and corners do not pinch your hand, compact and portable. Specification: Item Type: Gravity TimerMaterial: PlasticWeight: Approx. 79g/2.8ozSize: Approx. 46x44x44mm / 1.81x1.73x1.73inUse: TimekeepingMaximum Count: Gravity Mode: 5 10 30 60 Minutes, Manual Mode: 99 Minutes and 59 SecondsBattery: Lithium Battery, 500mah (Shipped with Built In Battery)Operating Temperature: 0-50Volume Level: Silent or Vibration, Loud 90-100db, Whisper 70-80db Package List: 1 x Timer1 x USB Cable1 x User Manual Note: Manual measurement please allow some error.