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Content
• Wireless headphones
• Carrying case
• Charging cable
• Manual
• Packaging
Specs
Model 19S-Tws.
Version: 4.2
Input: DC 5 V
Battery capacity: 3,7 V 50mAh.
Talk time: 2-3 hours.
Charging time: 40-50 min.
Profile support: HSP / HFP /
A2DP AVRCP
Sensitivity: 120 t SdB
Frequency: 20 - 20.000Hz.
Impedance: 320Ω
Functioning
1. Wireless pairing
Press and hold the multifunction bu-
ttons on both sides at the same time
until the LED flashes red and blue
alternately, both devices pair auto-
matically. Then double click on either
side to return to pairing mode. When
paired correctly, the main headset
continues to flash red and blue alter-
nately and the other headset blinks
blue once every 5 seconds.
Turn on Bluetooth on your device and
choose i9S. tws to connect when the
LED of both flashes slowly in blue,
the headphones will have connected
with your device successfully.
The headphones will automatically
pair again, after the first pairing is
successful. Or manually select the
i9s-tws to connect again if the hea-
dphones have been paired with other
devices.
2. Charging instructions
Headphone charging indicator: the
red light on when the headphones
are charging and the red light auto-
matically turns off after the headpho-
nes are fully charged.
Charging indicator of the charging
case: the blue light comes on when
the headphones are charging and the
red light comes on when the case is
being charged. The lights will go out
when fully charged.
3. Turn off
Press and hold the function key for
several seconds, and the red light will
turn on first, then turn off. When the
headphones are paired, if you turn
off one of the headphones, the other
headset will turn off automatically.
4. Call
When the headset is turned on and
connected to the phone, making and
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