Brand Name:KemeiModel Number:KM-3911Rated frequency:50/60HzRated power: 10WCharging time:3 hours /1 hoursUsing time:300minutes /120 minutesNote:Hello buyers, the oil bottle usually are not included, it is because of the air delivery limitation, please perceive us, thank you so much!Feature:- Professional Trimming: Use for crisp, clear lines, dry-shaving, and sharp edges with 0 overlap blades. Works as a hair, beard, sideburns, and mustache trimmer. All-in-one device, suitable for every age Powerful: a high-torque rotary motor with fine machines drive components to allow for professional-grade shaving at home, produce minimum noise, and hold long-term availability Bump Free Technology: With executed T blades function affords dry trimming, zero overlaps, super-close, clean shave without inflicting razor bumps or irritation Strong T-Blades: Blades are sturdy and dwell sharp longer than different blades, keeping long-term sharpness with out pulling the hair, high quality chrome steel blades present tender hair/beard trimming with complete physique grooming.