Quha Sento for Zono X User manual

Quha Sento for Zono X
User Manual

2
Quha Sento for Zono X with adjustable
headband
Quha Sento for Zono X with adjustable headband is a contactless
puff switch that is used to perform a short mouse click (left-
clicking) or a long mouse click (dragging) together with the
Quha Zono X head mouse.
Puff sensor
Magnetic holder and switch
contacts for Quha Zono X mouse
Headband, adjustable
from S to XL
Flexible puff sensor arm

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Installation
Quha Sento for Zono X with adjustable headband is delivered in
two parts: the headband and the holder with the attached puff
sensor arm.
To assemble your Sento for Zono X, push the
headband into the connector on the holder
until it is fully inserted. Make sure the holder
is inserted in the correct way as shown in the
picture on page 2.
You can attach your Quha Zono X mouse to
the magnetic holder either before or after
placing the Sento on your head (see page 4
on using Quha Sento for Zono X). You can
turn the mouse on either before or after
attaching it to the holder, whichever is more
convenient for you.
To attach the Quha Zono X mouse to the
magnetic holder, bring it close to the holder
and the magnets will grab it into the correct
position automatically. The mouse stays firmly
in place and is also easy to detach from the
holder.
The Sento puff switch connects to the Quha
Zono X mouse through the wireless switch contacts as soon as
the mouse is attached to the holder and powered on. Once the
mouse and the puff switch are connected, the puff switch is
ready to be used and puffs into the puff sensor will be registered
as left clicks.

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Using Quha Sento for Zono X
Place the puff switch on your head and
adjust the headband so that it fits firmly
and comfortably over your head. The
magnetic holder is worn on the right side
of the head with the flat end of the
holder pointing directly forward.
The puff switch detects the air flow
(puff) coming from the user’s mouth.
The puff sensor is located at the end of
the sensor arm. The more air flow there
is to the sensor, the more accurately the
switch can be controlled. Therefore, it is
necessary to place the sensor to a
position that the air flow can reach.
The flexible sensor arm should be adjusted so that the sensor is
located in front of the user’s mouth at a comfortable distance. A
typical distance is 1 - 5 cm (½ - 2 inch). The user is suggested to
try different positions because the air flow strength varies
greatly. With some experimenting, a good position is found in a
few minutes.
Testing the switch is simple. Puff into the sensor and a left click
is performed. Puff and keep puffing into the sensor and a long
click (dragging) is performed as long as the puff continues.

5
Troubleshooting
A click is not happening every time when puff is made
Make sure that the sensor arm is positioned close enough to the
mouth and that the air flow reaches the sensor.
Random clicks
Talking creates an air flow similar to puffing into the sensor and
the sensor picks this up. A good way to
prevent random clicks created by talking is
placing the puff sensor in front of the chin
slightly lower than the lower lip. Another
way is to increase the distance between
mouth and the sensor.
If the puff sensor rubs the user's clothing or skin when Sento is
put on, this may be picked up by the sensor. The easiest way to
avoid random clicks in this case is to allow the puff switch to
connect to the Zono X only after the Sento has been placed on
the user's head.
Keeping Quha Sento for Zono X Clean
As a contactless puff switch, Quha Sento for Zono X is easy to
keep clean. In the case of dust or saliva getting into the puff
sensor, you can use a food safe cleaning spray that is suitable for
electronics to clean the sensor piece.
The plastic parts of the headband can be wiped with a moist
cloth and mild detergent.

6
Safety
This device contain magnets. Do not place it close to
magnetically sensitive devices such as pacemakers, hearing
devices, credit cards, mechanical watches, data storage media
etc. as they may get damaged.
Product Disposal
When the device has reached its end-of-life it should be recycled
as electric and electronic waste.
European Compliance
The manufacturer of this product confirms that this product
complies with the European Union regulations for safety,
health, environmental and consumer protection.
UKCA
UK RESPONSIBLE PERSON
AVENTIDO Limited, Bridgewater House, Century Park,
Caspian Road, Altrincham, Cheshire, WA14 5HH, United
Kingdom
FCC Compliance
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation.

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Limited Warranty
Warranty on the product is 2 years from the date of purchase.
You can find the warranty card in the sales box. See the entire
warranty text on our website (www.quha.com/warranty).
© 2023 Quha oy. Quha oy is not responsible for possible errors
in this user manual. Quha oy reserves the right to revise the
content of this user manual.

Designed and manufactured in
Finland by Quha.
www.quha.com
Copyright 2023 Quha oy.
Quha, the Q-mark, Quha Zono X and Quha Sento are
trademarks or registered trademarks of Quha oy.