99 Hours Max Timing Lock is a Digital Timer Switch that doesn’t require keys. It alerts you when the count down goes to zero. It is durable. If it’s locked once, it will only unlock itself automatically when countdown comes to zero.
If time runs out it will unlock automatically. It is USB rechargeable, waterproof and can be used outdoor. The maximum time for a lock is 99 hours and 59 minutes. It comes up with batteries and battery type is Lithium. Hiplaygirl is always coming up with the best quality products for its customers.