515 Luminous Touch Wireless Bicycle Stopwatch Descriptions Main Feature: ● Elegant appearance simple fashion backlight full-screen ● Simple and convenient operation touchscreen button ● MTB / Road / folding / dead coaster round radiation general purpose ● Wireless models, versatile Specification General Type: Wireless Material: ABS Features: Accurate,Water Resistant Specifications Language: English Suitable for: Mountain Bicycle,Road Bike,Touring Bicycle Screen size: 1.5 Power Supply: 2 Lithium metal batteries Dimensions and Weight Product weight: 0.3000 kg Package weight: 0.3500 kg Product size (L x W x H): 6.50 x 4.00 x 1.50 cm / 2.56 x 1.57 x 0.59 inches Package size (L x W x H): 11.00 x 7.00 x 3.00 cm / 4.33 x 2.76 x 1.18 inches Package Contents Package Content: 1 x Stopwatch, 1 x Base, 1 x Magnetic Head, 1 x Induction Magnet, 1 x English Manual