The Wahl Beret Rechargeable Trimmer gives you the convenient feature of both cord and cordless use and is powered by a lithium ion battery up to 75 min run time & only 1 hour charge time! The rustproof, high-precision, quick-detach chrome-plated blades provide high precision accuracy for a clean line and cut and are easy to clean and maintain. This lightweight rechargeable trimmer is a stylists dream!