Powered by Lithium Ion technology, this clipper outperforms standard Wahl® rechargeable clippers by providing up to two times the run time, clocking in at one hour and forty minutes on a full charge. This eliminates the need for frequent recharging, and provides a versatile solution for people that prefer to cut hair outside in locations such as the garage or patio. The clipper has a charging indicator light. This Lithium Ion technology offers a 15 minute quick charge that gives you over 12 minutes of run time and the ability to hold a charge for up to one year. The kit also includes a full size battery operated detail trimmer (uses 2 AA batteries - not included in kit). The trimmer is great for cleaning up necklines, sideburns and trimming around the ears. The kit also includes 14 guide combs for a smooth and even haircut. There is a BONUS guide comb storage case for your convenience.