KOSS TWS150i Wireless Headphones Instructions
- June 6, 2024
- KOSS
Table of Contents
KOSS TWS150i Wireless Headphones Instructions
Start Included
Earbuds
Charging Case
Ear Cushions
Charging Cable
Instructions
Product Overview
- Charging case with battery life status lights
- USB charging port
- Earbud status light
- Touch strip
- Voice mic
- Acoustical vent hole
- L/R indicator
- Magnetic charging contacts
Specs
- Bluetooth Version： Bluetooth V5.0
- Input Power：5.0V 380mA
- Charging time：< 2h
Power On
Method 1
Open the charging case, the white lights will illuminate for 1 second. The
earbuds will automatically power on.
Method 2
While earbuds are in an off state, touch and hold the touch strip of both
earbuds for about 3 seconds, lights will iluminate for 1 second to show the
earbuds are powered on.
- Protective film must be removed from earbuds before they can be powered on and paired
Pairing
Mobile Phones and Headphones
Power on the left and right earbuds as described in the “Power On” portion of
this guide.
Find and select “KOSS TWS150i” in the Bluetooth list.
NOTE
- When power is on, the earbuds will auto-connect with the last connected device within 10 seconds. If the connection fails, the earbuds will enter pairing mode.
- If the earbuds are not connected to any device, they will automatically turn off after 10 minutes
Connection Lost
Bluetooth Off
Problem: If Bluetooth on source device is turned off, the earbuds will
automatically turn off after 10 minutes. If earbuds are disconnected, the L/R
earbuds’ red and white lights will flash alternately.
Solution: Make sure that the source device’s Bluetooth is turned on; then
power on earbuds again.
Out of Connection Range
Problem: If the connection between the device and the earbuds exceeds the
effective range, the earbuds will power off automatically after 10 minutes.
Solution: Make sure that device is in range, then power on earbuds.
Incoming call
Answer Call
Double-tap on the L/R touch strip.
End Call
Double-tap on the L/R touch strip.
Reject Call
Long hold the L/R touch strip for 2 seconds.
Music
Pause/Play
Double tap the L/R earbud touch strip to pause/play music in standby or music
mode.
While paused: Indicator lights illuminate once every 5 seconds
While playing: Indicator lights illuminate once every 5 seconds
Next Track
Hold the right earbud touch strip for 2s
Note: This function is not supported when L earbuds are used alone.
Previous Track
Hold the left earbud touch strip for 2s
Power Of
Place the earbuds into the charging case and closed the lid to automatically
power down earbuds.
Charging
Earbuds Charging
Place the earbuds in the charging case.
Charging: The left and right lights of the charging case will flash
Fully charged: No charging case lights are illuminated
LED Status When the Charging Case Charges the Earbuds
The L side charging case light slowly flashes when the L earbud is charging.
The R side charging case light slowly flashes when the R earbud is charging.
When L and R earbuds are charged at the same time, the L and R charging case
lights slowly flash at the same time.
When the earbud’s batteries are full, the charging case lights will indicate
the battery power level for 5 seconds.
Charging Case Light Language
LED status when the charging case is charging
When the poweris below 30%, the left light flashes.
When the poweris 30%~60%, the leftlight is always on and the center light
flashes.
When the poweris greaterthan 60%, the left and center lights are always on and
the right light flashes.
When the power is 100%, all 3 lights remain on.
LED status when charging case is not charging
When the poweris below 10%, the leftlight flashes.
When the poweris 10%~30%, the leftlightis on.
When the power is30%~60%, the left and centerlights are on.
When poweris 70%~100%, all 3 lights remain on.
Safety and Care
- Using earbuds at high volumes for extended periods of time may result in 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. Tips: liquid submergion voids the warranty.
- Keep the earbuds and packaging out of reach of children.
Battery warning!
- Do not disassemble, strike, crush or put the battery into fire. Do not expose the battery to conductive materials, liquids, fire, 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, or any other abnormality.
- 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.
FCC Warning
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- this device must accept any interference received, including interference that may cause undesired operation.
Any Changes or modifications 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 off 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 different 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.
Lithium Ion Battery
Model: 702334, 3.7V, 500mAh
GOLDEN CEL BATTERY CO. LTD.
Yinhu Industrial Park, Jiaoyitang Management Zone
Tngxia Town, Dongguan City, Guangzhou Province
Use the product in the environment with the temperature Between 0 C and 45 C ; Otherwise, it may damage your headset. For the following equipment:Product Name: Bluetooth Headset Brand Name: KOSS Model: KOSS TWS150i Corporation hereby declares that this [Name:Bluetooth Headset, Model: KOSS TWS150i] is in compliance with the essential requirements and other relevant provisions or directive 2014/53/EU.
KOSS
Bluetooth Earbuds Model: KOSS TWS1501
DC Input: 5V =380mA Battery Capacity: 500rnAh 1.85Wh
FCC ID: L76-KSTWS5201
