Sony WH-CH520 Wireless Stereo Headset

Safety Precautions and Important Information

This document provides essential safety information and guidelines for the Sony WH-CH520 Wireless Stereo Headset.

General Safety

• Do not install the product in confined spaces like bookcases or built-in cabinets.
• Avoid exposing batteries to excessive heat (sunshine, fire) or extreme low temperatures that could cause overheating or thermal runaway.
• Do not dismantle, open, or shred secondary batteries.
• In case of battery leakage, avoid contact with skin or eyes. Wash affected areas with water and seek medical advice.
• Charge secondary batteries before use, following manufacturer instructions.
• After long storage, charge and discharge batteries multiple times for maximum performance.
• Dispose of batteries properly. Rechargeable batteries are recyclable; visit http://www.sony.com/electronics/eco/environmental-management for recycling information.
• Do not handle damaged or leaking rechargeable batteries.

Usage Warnings

• High volume may adversely affect hearing.
• Do not use the unit while walking, driving, or cycling to prevent traffic accidents.
• Avoid use in hazardous areas where surrounding sound cannot be heard.
• The unit is not waterproof. Water or foreign matter entry may cause fire or electric shock. Stop use and consult a Sony dealer if this occurs. Be cautious near sinks, liquids, in rain/snow, or when perspiring.
• Never insert the USB plug when the unit or charging cable is wet to prevent short circuits and overheating.
• This product contains magnets that may interfere with medical devices like pacemakers. Consult a doctor before use if you use such devices.
• Magnets may affect magnetic stripe cards, rendering them unusable.

Static Electricity

Discomfort from static electricity in dry air is not a product malfunction. Wearing natural fiber clothing can reduce this effect.

Voice Guidance

The default voice guidance language is English. Guidance is provided for low battery, battery empty, battery level checks, and pairing mode.

Bluetooth® Communications

• Microwaves from Bluetooth devices may affect electronic medical devices. Turn off the unit and other Bluetooth devices in hospitals, near flammable gas, automatic doors, or fire alarms.
• Audio playback may be delayed compared to the transmitting device due to Bluetooth characteristics, potentially causing audio/video sync issues.

Charging

Always use the supplied USB Type-C cable.

Wearing the Unit

Ensure a proper seal over ears. Forcibly pressing or quickly removing headphones can damage eardrums. Speaker diaphragm click sounds are normal.

Other Notes

• Avoid applying weight or pressure to the unit for extended periods to prevent deformation.
• Discontinue use immediately if discomfort occurs.
• Consult your nearest Sony dealer for issues not covered in this guide.

FCC and ISED Compliance

This device complies with FCC Rules Part 15 and Innovation, Science and Economic Development Canada's licence-exempt RSS(s). Operation is subject to conditions preventing harmful interference and accepting received interference. The unit meets FCC and ISED RF exposure guidelines.

Location of Information

Nameplate and important safety information are located as indicated in Figure . The serial number label is located as indicated in Figure .

Specifications

Headset

• Power source: Built-in lithium-ion rechargeable battery (DC 3.7 V); USB charging (DC 5.0 V)
• Operating temperature: 0 °C to 40 °C (32 °F to 104 °F)
• Rated power consumption: 1.4 W
• Mass: Approx. 147 g (5.2 oz)
• Included items: Wireless Stereo Headset (1), USB Type-C® cable (USB-A to USB-C®, approx. 20 cm) (1)

Communication Specification

• Communication system: Bluetooth Specification version 5.2
• Output: Bluetooth Specification Power Class 1
• Frequency band: 2.4 GHz band (2.4000 GHz - 2.4835 GHz)

Design and specifications are subject to change without notice.

System Requirements for Battery Charge using USB

USB AC adaptor

A commercially available USB AC adaptor capable of supplying an output current of 0.5 A (500 mA) or more. Do not use a USB adaptor exceeding 13 W (5 V, 2.6 A).

Compatible iPhone/iPod Models

iPhone SE (3rd generation), iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13, iPhone 13 mini, iPhone 12 Pro Max, iPhone 12 Pro, iPhone 12, iPhone 12 mini, iPhone SE (2nd generation), iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11, iPhone XS Max, iPhone XS, iPhone XR, iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7, iPhone SE, iPhone 6s Plus, iPhone 6s, iPod touch (7th generation) (As of May 2022)

Trademarks

• Apple, iPhone, iPod and iPod touch are trademarks of Apple Inc., registered in the U.S. and other countries.
• The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Sony Group Corporation and its subsidiaries is under license.
• USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.
• All other trademarks and registered trademarks are trademarks or registered trademarks of their respective holders.

Licenses

• The "Made for Apple" badge indicates an accessory designed for specific Apple products and certified to meet Apple performance standards. Apple is not responsible for the device's operation or compliance with safety/regulatory standards.
• This product contains software licensed by Sony. For licensing agreement details, visit: https://rd1.sony.net/help/mdr/sl/23/
• Third-party services may change, be suspended, or terminated without notice. Sony is not responsible for such changes.