Koss Porta Pro Wireless - On Ear Headphones with Case 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.

Select "Koss Porta Pro Wireless" on transmitting device to pair

Bluetooth Paired

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

Charging

Controls

Ports

Light Language

Safety

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 expose your devices to liquid or extreme humidity.
• Do not drop, disassemble, microwave, incinerate or 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 fire. 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.

Use the product in the environment with the temperature Between -10℃ and 45℃;
Otherwise, it may damage your phone. It can be operated under 2000m.

The product shall only be connected to a USB interface of version USB2.0 or higher.
Connection to a power USB is allowed. This product can be used across EU member states.

RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
Do not use other unauthorized chargers or power supplies for charging.
Do not use the product in environment below -10℃ or above 45℃ for charging.

Manufacturer: Duangguan Beizhenrong Limited
Address: 3 Xin Yuan Street, Ju-zhou No. 2 Industrial Zone, Shijie Town, DongGuan GruangDong Province, P.R.C.

Lithium ion Battery:
Model: 75500, 3.7V, 220mAh
DongGuan Golden CEL Battery Co., Ltd
Add: No.11, Yinhu Industrial Park,
JiaoYiTang Management Zone, TangXia, DongGuan, GuangDong, China

Koss Corporation • 4129 N. Port Washington Ave.
Milwaukee, WI 53212 / USA • 1-800-USA-KOSS (1-800-872-5677)
Koss-UK Ltd., Registered Office Address
One New Change, London, EC4M 9AF / UK
For warranty information visit www.koss.com.

Product features and specifications are subject to change without notice. Product may vary from images shown.