Works with all 12V batteries.Wireless (Bluetooth 4.0) within 10 metersSoftware included for andReceives notifications about battery conditions within Bluetooth range.Automatically checks the vehicle's starter while the engine starts.Checks the charging system (alternator)Lists the time for each drive.Warns the mobile phone if abnormal data is detected.Short-circuit and reverse connection protection.Data is stored in the battery monitor for up to 35 days if unsynchronized.Automatic synchronization when within Bluetooth range.Compatible with all 12V vehicle batteries.Displays historical data graphically.Engine start detection automatically.Free app for iOS and .Color: blackMaterial: plasticPackage contents:1 x Battery Monitor BM2 Bluetooth 4.0 Device Car 12V Battery TesterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.