Hot Metallic Black Lava Faceless Blue LED Volcanic Men Lady Bracelet Wrist Watch Material: Alloy, Case Size: 4.3 x 2.5 x 1.3 cm Band Length: 18-22 cm, Screen: Two rows LED lights for time display Settings: Time, Date, Seconds (Watch looks like a common metal bracelet at normal condition, time will be displayed just like lava while LED is lighting), Function buttons (right-side): Top (hour and date display + select) Button (change mode) Daily Water Resistant (not for swimming or showering): Yes. Color: Black with Red LED Battery: One CR2032 battery (included in watch)