Product features:<br />1.All functions of the products are digital display stalls<br />2.Products use USB charging plug， and it can be recharged.<br />3.Built-in microphone trigger<br />4.Shock， vibration， 8 gear adjustment (0~7)， tune to 0 stalls， that is， to shut down this function， Sensitivity 7 stalls (1~7)<br />5.Digital display of rechargeable cell power 7 files.<br /><br />Specification:<br />1.Function: shock + vibration + sound + sensitivity adjustment<br />2.Charging Time: 1 hour and more<br />3.WorkingTime:14 days<br />4.Fit for dog' Size from 6.6 lb to 88 lb<br />5.Color: Black<br />6.Material: Plastic<br /><br />Package Include:<br />1 X Collar<br />1 X USB Charger Cable<br />1 X User Manual<br />1 X Test Bulb