Voltage: 6V-20V Special Features: Bluetooth Model Name: BM6 Item Type: Battery Testers Colour:As Shown Material:plastic Package Contents: 1 x Battery Monitory 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.