[Multi-Function] Built-in Multi functions to meet your different needs. [Waterproof IPX6] Using IPX6 waterproof , it can be used with in . do not use it for a long time immersed in water or in heavy rain. [Connection ] Wireless sensing distance 60 cm, distance between magnet and sensor3 mm. [5 Languages Switch Freely] 5 languages in different countries to meet the needs of users in different countries. The language can be set when the bicycle computer is turned on.5 languages are Chinese, English, , French, Spanish, [Backlight function & LCD Digital Display] The bike computer can be used day or night. Brand Name: Biking Stopwatch and Accessories: Waterproof Stopwatch Weight: About 30g(Screen Only) Waterproof Grade: IPX-6 Function: Speed/Stopwatch/ Mileage/Temperature/Average Speed/Maximum Speed/Time, etc. Features: Automatic , waterproof, backlight, HD screen, etc. Name: 5 Language Waterproof Bike Computer Screen Size: 31mmx 41mm(2.0 inch) Battery: 2032 Button Battery Applicable: Road bikes, mountain bikes, etc. Backlight: Green Backlight Style: Wireless color:Black :ABS Package Contents: 1 x bike computer 1 x Accessory set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.