DescriptionModel Number : Rider 320Stopwatch and Accessories : Wireless StopwatchCertification : CEProduct descriptionFEATURES:Model no: 320E/320TDimension: 49.9 x 83.9x 16.9mmDisplay: 2.3" Mono LCDBattery: 36 hoursTransmission: BLE4.0 / ANT+GPS: High-Sensitivity ChipsetWaterproof: IPX7Lap history: 130 lapsLog history: 300 hoursHeart rate zones: 7 zonesOperating Temperature: -10C ~ 50CAlerts: YesWeight: 72g (10%)Language: EN/FR/DE/IT/ES/NL/DA/NO/SW/FI/PT/JP/KO/TC/SCContent: Rider 420 Main Unit / USB Cable / Bike Mount / F-Mount / Quick start guideSimply PreciseEngineered with Simplicity and Convenience at its core, in order to create the most enjoyable cycling experience, the Rider 320 is built with 2.3 high quality optically bonded display, producing a crystal-clear view from any angle. Its follow track function with turn-by-turn makes exploring unfamiliar areas worry free, and by incorporating Full Global Navigation Satellite System (GNSS) support, the Rider 320 enables a faster satellite fix and guarantees more precise positioning and recording. It also provides maximum compatibility by working perfectly with both ANT+ and BLE sensors, making the Rider 320 a simple and precise GPS Cycle computer that is easy as start-and-go