The Philips BT5515 Series 5000 Precision beard trimmer with detail trimmer attachment and lithium-ion battery. With 40 length settings from 0.4mm to 20mm this trimmer is excellent for short or long beards. It will run for 90 minutes after a one-hour charge, or plug it in for continuous power. It comes with a convenient charging stand and self-sharpening stainless steel blades.