Model: ER2051 (variant: ER2051K) .
Cutting length adjustment: 12 settings from 2 mm to 18 mm .
Blade: Stainless steel blade .
Operation: Corded + cordless (AC rechargeable) .
Charging time: ~1 hour .
Runtime (cordless): Up to ~40 minutes .
Body / dimensions (from a retailer): approx. 20 × 5.7 × 4.5 cm, weight ~0.66 kg.
Universal voltage (mentioned): 100-240 V in one retailer spec sheet.