Barber composition

Battery Category: Built-in lithium battery, excellent power efficiency performance, shorter charging the same capacity, the price is high. Built-in NiMH battery, the market quality hair clippers spread, prices generally
Power-efficient performance in general. Built-in nickel-cadmium batteries, low price, power-efficient performance in general, is not environmentally friendly. External battery (typically uses two AA batteries) lower costs for manufacturers Barber need to purchase Professional grade hair clippers another battery, the overall cost is not high, not environmentally friendly.
2 with wire plug Barber generally used for barber shop, because the number of frequent use, requires continuous power supply.