Seems a good price, 1 hour charge time for 120 minutes usage and 1 minute quick-charge time with 5 Year guarantee.

This slimline easy grip trimmer benefits from the revolutionary power of Lithium technology, with double the power. You can define your style with the integrated adjustable comb, setting your length with the convenient slide switch to create the perfect stubble, this trimmer has it covered. The handy one minute quick charge function means you always have the power to look your best.

Model number: wm8541-806x.
Equipped with revolutionary lithium ion technology which gives you 120 minute run time from a 60 minute charge, the lithium ion stubble trimmer gives you 2 x more power and 50% more run time. Complete with a wahl styling guide, to provide you with step by step tips for clipping & trimming hair at home.
Ergonomic design.
Grades: 0.5-20mm.
Worldwide voltage.
1 hour charge time for 120 minutes usage.
1minute quick-charge time.
Not washable.
4 attachments: adjustable combs.
1 head.
For dry use.
Corded or cordless use.
Accessories include: cleaning brush, oil, moustache comb, styling guide.
General information:
Rechargeable powered.
Li-Ion (included) .
Manufacturer's 5 year guarantee.