PowerCom Small USB stick Base Station Model number: WRS971-DSIH , 2.4 GHz frequency hopping spread spectrum (FHSS) transceivers., Frequency Synthesized. One PowerCom RF1 Base Station per 500 keypads of the same channel identity in a room. 31 RF Base Station identifiers allows up to 15,500 pads per room.

Weight: 0.2 lb.
Dimensions: 3in. × 1in. × 0.5in.