21103 Radio Hand controller LH101-R and LTM101 ReceiverDigital plus's new LH101 R wireless handheld controller is identical to functionality and operation With the handheld LH101. Connection to XpressNet control with the radio receiver LTM101. Up to 4 radio LH101 R can be operated on a radio receiver LTM101. The radio technology is being developed in collaboration with Massoth. The power is supplied by 2 AA batteries. Features: 9999 addresses for digital locomotives Rotary Speed control addresses are