JBL S400BT User Manual page 4

2. Charging for headset
The headset comes with a built-in rechargeable battery, prior to using it, it is
recommended to charge the battery fully for the first time.
When the headset is low power, the headset emits five "Dong" tones every 5
minutes and the red LED flashes instead of blue LED. Please recharge the
battery of the headset.
The way of charging as following:
Using USB cable
1. Plug the special charging clip into the charging jack of headset, make it
clip the headset as pictures shown :
2. Plug another side of cable to the USB port of PC
Red light on: Charging
Red light off: Finish charging
3. It will takes about 2 hours to finish charging
Remarks:
1) The battery is recyclable.
2) Batteries (battery pack or batteries installed) shall not be exposed to
excessive heat place, such as sunshine, fire or the like.

Getting started
1. Turning on/off the headset
Functions Operation
Turning on Single press power button to
turn on the unit, p
Turning off Press power button and hold to
turn off the unit
Remark: In order to save power, the headset will turn off automatically if
no devices can be connected after 5 minutes.
2. Pairing the headset with Bluetooth devices
1) How to enter pairing mode
Functions Operation
Entering When in BT Active mode,
pairing single press to enter the BT
mode paring mode, press and hold for
2 seconds to exit paring mode.
LED indicator
White on one second
Red LED on one
second
LED indicator
Red and White LED
flash alternately