feature: 1. This electric bike monitor with communication protocol is only suitable for BBS01, BBS02 and mid-drive motors, as well as electric bikes, road bikes, mountain bikes, folding bikes with motors. 2. TFT + IPS sunlight screen: TFT type display is the among LCD color monitors, ensuring clear data in high-speed operation and helping to read riding data easily 3. With bluetooth function and map navigation: You can clearly understand the road conditions on the display screen without looking at your mobile phone for long-distance riding. 4. With mobile phone information and call reminder display function: When Bluetooth is connected to the display, it will display text messages, calls and information on the display. 5. Intimate service: When purchasing, please pay attention to whether the instrument socket can be used for your engine. Specification: Name: Protocol Display Screen size: 2.4inch Compatible handlebar: 22.2/26 (mm) Pixel: 320x240px Type: IPS full viewing angle screen Length: 20 cm Type: waterproof connector Working voltage: 12V/32V/48V/60V Working temperature: -20 - +50 Waterproof grade: IP67 Communication protocol: UART Bluetooth: 4.0 + Net weight: 74g Gross weight: 135g Material: Plastic colour: Package Contents: 1 x Display 1 x English instructions 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.