User Guide for Sennheiser CX 150BT Earphones

Quick guide from the manual

This document provides essential safety and operational guidelines for the Sennheiser CX 150BT earphones. It covers battery maintenance, health precautions, and regulatory compliance to ensure safe and proper use of the device.

Safety instructions

To prevent health damage and accidents, observe the following precautions:

• Hearing protection: Do not listen at high volume levels for long periods to prevent hearing damage.
• Earphone insertion: Do not insert ear canal phones too deep into your ears and never insert them without ear adapters. Extract them slowly and carefully.
• Magnetic fields: The product generates permanent magnetic fields. Maintain a distance of at least 10 cm (3.94 inches) between the product components containing magnets and cardiac pacemakers, implanted defibrillators (ICDs), or other implants.
• Environment: Keep the product, accessories, and packaging out of reach of children and pets to prevent swallowing and choking hazards. Do not use the product in environments requiring special attention, such as in traffic.

Lithium battery safety

Improper use or abuse of rechargeable batteries can lead to leakage, heat generation, fire, or explosion. Follow these guidelines:

• Charging: Only use rechargeable batteries recommended by Sennheiser and appropriate chargers. Charge only at ambient temperatures between 0°C and 40°C (32°F to 104°F).
• Storage: If not using the battery pack for extended periods, charge it regularly (approximately every 3 months).
• Handling: Do not heat batteries above 70°C (158°F). Avoid direct sunlight and do not throw batteries into fire.
• Disposal: Dispose of defective products with built-in rechargeable batteries at special collection points or return them to your specialist dealer.

Intended use

These headphones are designed as an accessory for Bluetooth-compliant devices for wireless audio communication, such as music playback and telephone calls via Bluetooth technology. Improper use includes any application not named in the associated product guides.

Data collection and firmware

The product stores individual settings such as volume, sound profiles, and Bluetooth addresses of paired devices. This data is required for operation and is not transferred to or processed by Sennheiser or its commissioned companies.

Disposal and environment

The crossed-out wheeled bin symbol indicates that these products must not be disposed of with normal household waste at the end of their operational lifetime. They must be disposed of separately in accordance with local waste segregation regulations. Proper collection of waste electrical and electronic equipment promotes reuse and recycling, helping to prevent negative effects on the environment and public health.