Night-Friendly DisplayFull-screen backlight design ensures clear visibility and safe riding at night. User-Friendly OperationOne-button control to easily switch between multiple interfaces and functions. Weather-Resistant DesignWaterproof construction for worry-free riding in rain or snow. Wireless Sensor EquippedBuilt-in wireless sensor supports stable data transmission within 60cm range. Five Language SupportFeatures five language options: English, German, French, Dutch, and Spanish. Specification: Model: Wireless Net Weight: About 33.2g Application: MTB Road Bike Display Five Languages: English, Deutsch, France, Dutch, Espanol Size: 6 x 4.4 x 1.5cm Battery: CR2032H Button Cell (included) Package included: 1 x Wireless Computer 2 x Batteries 1 x Bracket Seat 1 x Magnet 1 x Sponge Slice 1 x Sensor 1 x Few of Plastic Straps 1 x Rubber Loop 1 x English and Chinese User Manual