Shell material: metal plus plastic
Color classification: black, blue
Gross weight: 0.25KG
Display mode: dial pointer indication
Power type: battery
Packing volume: 0.01
Quiet when walking, silent, mechanically ringing, crisp and loud, matte finish, no deformation and fading, with night light, soft small light will illuminate the dial, not glare and power saving, convenient for night use, the pointer is blossoming The sound, the sound is running below 10 decibels without noise, and rest assured to sleep.