The Bishamon MobiLift BX-50B's is a battery-operated model with a removable push-button control on a cord with a convenient handle mount. It has an easily accessible on/off switch with integrated circuit breaker, enclosed automatic charger with removable power cord, and upper travel limit switch. The green-yellow-red indicator lights provide quick indication of battery charge. It has an easily accessible, adjustable lowering speed control. The heavy duty construction with captured scissor rollers provide maximum stability. High quality caster and wheels procide exceptional rollability with a foot actuated caster brake.