Panasonic ER-DGP90 150 minutes of operation A rechargeable battery system and the linear motor 2.0 enable 150 minutes of continuous operation. An ultra-fast linear motor ensures maximum performance even in the thickest hair. The length of cut can be adjusted even more precisely in 7 stages from 0.8 mm to 2.0 mm using the rotary control for setting the cutting length - and conveniently while cutting (one-handed operation). 4 comb attachments allow 8 cutting lengths from 3 to 25 mm.