Koss BT221i - Headphones Manual

Bluetooth Discovery Mode

To enter Bluetooth discovery mode, from an off state, depress and hold the center button until light flashes red and blue.

red & blue (flashing)

Select "Koss BT221i" transmitting device to pair

Bluetooth Paired

When the indicator light flashes blue once every 5 seconds, the device is pared with Bluetooth.

red & blue (flashing)
1 flash / 5s

Charging

Controls

Ports

Light Language

Blue (flashing) Pairing
Blue & Red (flashing) Bluetooth Discovery Mode
Blue (solid) Charger Connected, Fully Charged
Red (solid) Charger Connected, Charging
Rod (flasing) Low Battery

Please read these safety warnings carefully to ensure your personal safety and prevent property damage.

• Do not leave your devices in close proximity to open flames or extreme sources of heat.
• Do not devices, to liquid or humidity.
• Do not drop, paint your devices.
• Do not expose your devices to extreme high or low temperatures.
• Clean your devices with a clean, dry cloth.
• Do not leave your devices in direct sunlight for an extended period of time.
• Do not dispose of your devices in a file. The battery could explode causing injury or death.
• Do not attempt to clean your devices while they are being charged
• Only Charge your devices with the components supplied with the devices.
• Do not attempt to disable the devices, chargers or cables or force open the built-in battery.
• Do not charge your devices in damp areas or in extreme high or low temperatures.
• Do not leave or store the devices or any of their accessories near or over your automobile's airbags because serious injury may result.

Koss Corporation
412g N. Port Washington Ave.
Milwaukee. WI 53212 f USA I-BOO-USA-KOSS (1-800-872-5677)
Koss-UK Ltd., Registered Office Address
One New Changgi London, EC4M 9AF / UK
For warranty information visit www.koss.com.

Use the product in the environment with the temperature Between -10⁰C and 45⁰C;
Otherwise, it may damage your phone. It can be operated under 2000m. For the following equipment:
Product Name: Bluetooth Headset Brand Name: KOSS
Model: Koss BT221i

Documents / Resources

References

• Koss Stereophones

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Koss BT221i - Headphones Manual