Koss TWS250i Manual

Koss Ikke kategoriseret TWS250i

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Side 1/1

Charging cable

Hold 2 sec Hold 2 sec﹥ ﹥

x1t

Note: earbuds will automatically connect to your device

after initial connection as long as Bluetooth is on.

1. Choose “KOSS TWS250i” to connect

Bluetooth

KOSS TWS250i

Connected

DEVICES

x2t x2t

x1t

TWS250i TRUE WIRELESS EARBUDS

Charging case

Earbuds

In the Box Touch Controls

3. Voice assistant

Triple tap to prompt the voice assistant

2. When earbuds are in the charging case the light indicates

that charging is in progress. The red light turns o when

charging is complete.

1. Plug charging case into power source with supplied cable

2. Music

1. Phone call

Touch button functions and indications

Note: is for tap and is for touch and hold in the images below"t" “Hold”

Touch Controls

Reset

1. For rst use, hold the touch surfaces of both

the left and right earbuds for 2 seconds or more

2. The earbuds will power on and enter pairing mode

(shown with blue and red ashing LEDs)

2. Pairing successful

Light Language

Pairing Connecting To Bluetooth Device

Charging

Product Specications

Factory Reset

Pow ner O

Pow er O

Bl hue lig t x3

Earbud Light Language

Charging Case Light Language

R led igh 1t x

BT Paring Flash

Low atter R B y emi den r

Chargin Progr s R lg in es ed igh nt o

R led igh t o

Charging Com teple

BT Con cted Fla c very sne sh on e e 5

Flashing red light

WARNING FCC Warning

The Directive on Waste Electrical and Electronic Equipment (WEEE), which

entered into force as European law on 14/02/2014, resulted in a major

change in the treatment of electrical equipment at end-of-life.

The purpose of the Directive is, as a rst priority, the prevention of WEEE,

and in addition, to promote the reuse, recycling and other forms of recovery

of such wastes so as to reduce disposal.

The WEEE logo on the product or on its box indication collection for

electrical and electronic equipment consist of the crossed-out wheeled bin,

as shown below.

2. Pairing process begins again

Step 1: Make sure both earbuds are in the charging case,

touch & hold both earbud for 5 seconds to power o

Step 2: Touch & hold both earbuds for 8 seconds while

they are in charging case and while powered o

• The red light ashes for 4 seconds and a warning tone of two beeps

occurs during this process

Lithium Ion Batteries:

Model: 602030 , 3.7V , 300mAh

YJ POWER GROUP LIMITED

2F.B6 Building Tianrui Industrial Zone,Fuyuanyi Road, Fuyong

Town, Baoan District, Shen Zhen, China

Model:581013 , 3.7V , 50mAh

DongGuan Nengyou Energy Science and Technology Co.,Ltd.

Building B,No.353, QingFeng Road,SanZhong Village, QingXi

Town,DongGuan City,GuangDong Province.

Use this product in an environment with a temperature between

0℃ and 45℃; otherwise, it may become damaged.

Model: KOSS TWS250i

Hereby declares that Bluetooth Headset, Model: KOSS TWS250i

is in compliance with the essential requirements and other

relevant provisions of directive 2014/53/EU.

KOSS Corporation

Model: KOSS TWS250i

Bluetooth Version: V5.0

DC input: 5V=280mA

Case Battery Capacity 300mAh 1.11Wh：

Combined Earbud Battery Capacity 100mAh 0.37Wh ：

Made in China

Put the earbuds into the charging case

Press and hold the earbuds for 5 seconds to power them o

Press and hold the earbuds for 8 seconds

Close charging case lid

Factory reset complete

R L

x3t

“Connected”

Beeping Beeping

① ②① ②

0~25%

25~50%

50%~75%

75%~100%

This device contains license-exempt transmitter(s)/receiver(s) that 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. Any Changes

or modications not expressly approved by the party responsible for

compliance could void the user's authority to operate the equipment. This

equipment has been tested and found to comply with the limits for a Class

B digital device, pursuant to part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference in

a residential installation. This equipment generates uses and can radiate

radio frequency energy and, if not installed and used in accordance with

the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to

radio or television reception, which can be determined by turning the

equipment o and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit dierent from that

to which the receiver is connected.

-Consult the dealer or an experienced radio/TV technician for help.

The device has been evaluated to meet general RF exposure requirement.

The device can be used in portable exposure condition without restriction.

FCC RF exposure statement:

The equipment complies with FCC Radiation exposure limit set forth for

uncontrolled environment. This equipment should be installed and

operated with minimum distance 20cm between the radiator and your

body.

Using earbuds at high volumes for extended periods of time may result in

permanent hearing damage. It is advised you keep volume levels moderate

to low at all times for your safety.

Do not use while driving a car, cycling, operating machinery, or performing

other activities that require hearing surrounding sounds.

Earbuds may not work properly under high temperature or high humidity

conditions.

Do not use any corrosive cleaner/oil to clean the earbuds.

If the earbuds come in contact with liquids, quickly wipe away. If submerged

in water, do not turn the earbuds on until completely dried.

Liquid submersion voids the warranty.

Keep the earbuds and packaging out of reach of children.

* Do not disassemble, strike, crush or put the battery into re.

* Do not expose the battery to conductive materials, liquids, re, or high

temperatures.

* Do not allow metal objects to touch the two poles of the battery.

* Do not continue to use the battery if it has bulges, leaks, discoloration,

odors.

* Do not use the battery after it has been submerged in water.

* If the battery is used improperly, it may explode or leak, causing burns

and other personal injuries.

* If the battery leaks, it should be carefully disposed of according to the local

laws and regulations concerning battery disposal.

4. Power o

Return earbuds to case to automatically power o or

touch & hold earbuds for 5 seconds to manually power o

Beeping Beeping

Hold 2sec﹥

Hold

﹥ ﹥ ﹥ ﹥5sec Hold 8sec Hold 5sec Hold 8sec

Hold

﹥2sec

Hold 5sec﹥

x2t Hold﹥1secx2t

1. Phone call

Hold 1sec﹥

Produkt Specifikationer

Mærke:	Koss
Kategori:	Ikke kategoriseret
Model:	TWS250i
Produktfarve:	Sort
Produkttype:	Hovedtelefoner
Bluetooth:	Ja
Bluetooth-version:	5.0
Anbefalet brug:	Opkald/musik
Forbindelsesteknologi:	Trådløs
Bæremåde:	I ørerne
Headset type:	Binaural
Hovedtelefon frekvens:	20 - 20000 Hz
Mikrofontype:	Indbygget
Trådløs rækkevidde:	10 m
Ørekobling:	Intraaural
Opladningsetui:	Ja
Powerbank-interface:	USB Type-C