Meilan M4 bike computer With this bike computer from Meilan you can store all the important information of your bike ride. For example, it remembers the speed, ride time, distance traveled and altitude. You can also find and compare old rides. The GPS chip in the computer ensures that the information is recorded as accurately as possible. The battery is rechargeable with a USB charger. It supports external heart rate and power meters, which you can connect to the bike computer via Bluetooth. Specifications: Color: black Material: plastic Display size: 2.5 inch Connection: wireless Rechargeable via USB. Contents: 1 Bike computer 1 Mounting system