Product overview
CX 400BT True Wireless | 9
Notes on voice prompts
The earphones output voice prompts for events (the table gives
some examples). Using the Smart Control app, you can change the
language of the voice prompts, choose between voice prompts and
beep sounds, or deactivate the status messages with a few excep-
tions (e.g. rechargeable battery is empty).
LED
Meaning; the earbuds...
flashes red-blue
for approx. 1
minute
... are in Bluetooth pairing mode
flashes blue 3x
... Bluetooth pairing or earbud pair-
ing successful
flashes red 3x
... Bluetooth pairing or earbud pair-
ing failed
lights up blue
... are connected to a device via
Bluetooth
(master earbud (R) is connected to
the smartphone, slave earbud (L) is
connected to the master earbud (R))
lights up red
... are not connected to a device via
Bluetooth or the connection has
been lost
(master earbud (R) is not connected
to a smartphone, slave earbud (L) is
not connected to the master earbud
(R))
flashes red
quickly
... rechargeable battery is almost
empty
flashes red
slowly
... system error – the Smart Control
app may display details. Perform a
restart (> 31)
flashes red-
green for
approx. 1 minute
... are in earbud pairing mode (to pair
the right and left earbud)
3x
3x
Voice prompt
Meaning/earbuds...
“Power on”
... are switched on
“Power off”
... switch off
“Connected”
... connected via Bluetooth
“No connection”
... not connected via Bluetooth
“Pairing”
... in Bluetooth pairing mode
“Pairing cancelled”
... Bluetooth pairing cancelled
“Pairing successful”
... Bluetooth pairing successful
“Pairing failed”
... Bluetooth pairing not successful
“Recharge headset”
... Rechargeable battery is almost
empty. Recharge the rechargeable
battery.
