The 701r is a narrow band FM radio transmitter compatible with the 762r, 768r/769r and 7510r 868MHz radio receivers.
It can be used to trigger outputs on any of these receivers, or start social care alarms on the 7510r. The transmitter is powered by a lithium manganese dioxide battery, which is designed to give at least 20,000 operating cycles, or three years of life if used twice per day. The unit can be worn as a neck pendant or carried in the pocket. (See also the 702r for wrist and broach options.)