Product details of Kemei Electric Clippers With Trimmer For Men KM- 3909. Brand Kemei. Number of Attachments 4. Suitable For Beard, Body Grooming. Type: Professional Trimmer. Ideal For Men. Rechargeable. Recharge Time: 8 hours. Use Time: 60 min. Power Required (Volts) 220-240 V. Number of Batteries 2. Power Source Battery. Battery Size AA. Cutting Length Comb: 4 pieces (3,6,9,12mm). Oil/Cleaning Brush. Charging Adaptor.