ON
OS-T23
ON
OS-T23
ON
OS-T16
ON
OS-T23
Pairing and connecting
1. Press the MF button for 5 seconds to power on the
earphone. It will automatically go into paring mode
(the red and blue indicator will flash alternately and
you will hear the indicator voice).
2. Switch on the Bluetooth function (Android: scan for
device) of your smartphone, on which start a search
for Bluetooth devices.
Calling
1. Answer calls
When call comes, there is voice to ask "yes or no" to
answer or not answer the phone or you can tap the
MF button to answer the phone.
2. Stop calls
Press the MF button once. Or use your smartphone to
end it.
3. Reject calls
When call comes you can press the MF button for 2
seconds to reject calls.
4. Redial the last call
When you are listening to music or the earphone is
standby, press the MF button twice to redial the last
call. When you are answering a call, press "+" and "-"
at the same time to redial the last call.
5. Muting
When you are on call, keep the /- pressed
to mute the microphone
Instruction for charging
1. The DC voltage should be 5v.
2. The earphone built-in battery is rechargeable and
non-detachable. Don’t replace the battery.
3. Connect the smaller plug of charging cable to the
USB socket of the earphone. Connect the other plug
to the USB socket of your computer or other charging
device.
4. While the earphone is being charged, the indicator
is red. When the earphone is fully charged, the
indicator is blue.
Technical specification
Bluetooth version: v4.1
Chip set: CSR 8635
Bluetooth Profiles: A2DP1.2, AVRCP1.4, HSP1.2, HFP1.6
Drive unit: 40mm
Talking/Music-playing time: ~ 8-10 H
Standby time: ~ 300 H
Charging time: ~ 1-2 H
Speaker impedance: 32OHM
Battery capacity: 250mAH
3. From the founded Bluetooth devices select
“OS-T23”to establish a Bluetooth connection to the
earphone. If necessary enter the default PIN
code”0000”.
4. After connecting the blue indicator will flash
regularly. And your phone will automatically connect
to your earphone after the former paired.
Paring with 2 smartphones
1. Power on the earphone and ensure it enters into
paring mode.
2. Switch on the Bluetooth function on phone 1,
search for “OS-T23”, pair and connect the earphone.
3. Switch off phone 1 and power off the earphone.
4. Power on the earphone again and ensure it enters
into paring mode. Switch on Bluetooth of phone 2,
search “OS-T23”, pair and connect the earphone.
5. Switch on Bluetooth of phone 1 and connect the
paired earphone.
Paring with computer
1. If your computer doesn’t have Bluetooth function,
plug in a Bluetooth adapter.
2. Power on the earphone and ensure it enters into
paring mode.
3. Switch on the Bluetooth control software, search
for "OS-T23", pair and connect the earphone to audio
device.
Listening to music
1. Playing/stop music: While listening to music, press
the MF button to stop music. Press the MF button
again to start.
2. Turn up the volume: Press the "+" button
3. Turn down the volume::Press the "-" button
4. Next Track: Double press the "+" button
5. Previous track: Double press the "-" button
Multifunctional button (MF)
/- or Next/Previous track
USB charging socket
Mic
Indicator light
Mini USB plug
USB plug
OS-T23
Bluetooth earphone Etna
User manual