Bojafa Professional Cordless Quiet Pet Cat and Dog Hair Grooming Trimmers Clippers 2 Pcs 2000mah Durable Rechargeable lithium-ion battery included.Make sure hours continuous art work. As long as 7 hours working for dogs&cats per charge. 5X-10X times working longer, 4X fast charging ,1.5X Discharge fully than conventional dog grooming clippers (90% trimmer use nickel-cadmium cell or Ni-MH Batteries )Really the best dog hair clippers ever. Titanium black Ceramic Blade.Which can provide perfect cutting performance no matter for short hair or long hair pets trimming, sharp enough after a long time using. Detachable dog hair clippers blades are also easy to change and clean. Besides, R type obtuse angle designed pet grooming kit for dogs or cats can keep your pets away from damage during trimming. Tips: Trimmers work best when using on clean, dry,and combed/brushed hair.Which will also help to extend blade's life. Never Stucks.With its powerful 3.7V electric motor(traditional is 2.4V),39.8 Degree cutting angle,Titanium black ceramic blade (2X harder than oridinary white ceramic),removable blade,stuck situation will never happen no matter your pet is bushy hair or not. Extremely low noise&silence,its noise level below 60dbthe normal noise threshold for private housing is 60db .With its special blade fitting technology and Q-SUS Noise Reduction Technology ,which reduces friction between removeable blade and fixed Blade effectively.Pets will never afraid. Please Note: Duing to the shipping restrictions, your package does not include oil accessories. Please do not disassemble the clippers by yourself. This product can only be allowed to clean by cloth with a little water or mild soap liquid.