Operation Manual

Page 7 of 16
be obtained from the local council
waste disposal facility.
FUNCTIONS AND USE
The latest Bluetooth technology is
used for the transmission of the
heart rate from the chest strap
(transmitter) to your smartphone. I.e.
smartphones with Bluetooth® smart
and Bluetooth® smart ready are
compatible. You can find a current
list of compatible smartphones at
www.runtastic.com/products
Our combo chest strap sends two
signals. A Bluetooth signal and
another signal on a transmission
frequency of 5.3 kHz. Due to the
additional 5.3 kHz transmission, this
chest strap is also compatible with
most training devices in the gym. If
you already own a Runtastic
receiver (RUNDC1 or RUNDC2), this
may also be used with the combo
chest strap for a transfer without
Bluetooth.