The Wahl Lithium Ion Trimmer 9885-027 (Optimus) is a versatile, cordless grooming kit featuring self-sharpening stainless steel blades, an ergonomic design, and Advanced Lithium Power for 3 hours of runtime from a 1-hour charge, with quick-charge capability; it includes multiple heads (trimmer, detailer, foil shaver), various guide combs (1.5mm, 3mm, 4.5mm, and a 2-12mm variable comb), a charging stand, oil, brush, and pouch for comprehensive beard and hair grooming. 
Key Specifications:

Model: 9885-027 (Optimus)
Power: Lithium-Ion rechargeable battery
Runtime: Up to 3 hours on a 1-hour charge
Quick Charge: 1 minute charge for 3 minutes use
Blades: Precision-ground, self-sharpening stainless steel
Design: Ergonomic, non-slip grip
Indicator: Smart LED charge indicator 

Attachments & Accessories:

Heads: All-in-one trimmer, Detailer, Single Foil Shaver
Guide Combs: 3 single combs (1.5mm, 3mm, 4.5mm) & 1 variable comb (2mm, 5mm, 7mm, 10mm, 12mm)
Other: Beard comb, oil, cleaning brush, charger, storage/charge base, storage pouch 

Features:

Versatile Grooming: Handles beards, hair, and detailing.
Easy Cleaning: Detachable and rinseable blade set.
Convenient Storage: Includes a storage/charge base and pouch