The Main Reasons for Pet Hair Grooming:--Decrease chance of health problems--Reduce load of external parasites on skin--Make your dog or cat pretty--Forge of closer bond between your pet and you--Make them comfortable and healthy and improve their lifespanHow to get your pet used to hairdressing:--Show him the electric clipper and let him sniff it while it is turned off.--Turn it on so the pet can get used to the sound.--Have the pet sit while the tools are running. Once he is used to the tooltry touching it to his hair.Otherwise repeat the above steps a few times.Specifications:--Type: Pet Dogs Dog Hair Trimmer--Input: 100-240V AC 50 / 60hz--Output: 3v DC 1000mA--Charging time: 5 hours--Continuous working time: 90 minutes--Head material: titanium ceramic cupsPackage included:1* hair clipper1* Plug Charging adapter4* adjustable combs1* cleaning brushTips:--To extend the blade life, we suggest you clean pets' hair before hair trimming.--Please do not disassemble the clippers by yourself.This roduct can only be allowed to clean by cloth with a little water or mild soap liquid.--Due to shipping restrictions, your package does not include lube oil.Hope you can understand.The delivery period is 15~25 working days. If our products are not satisfactory, please contact us and we will be happy to receive your feedback on our products.