Apple Macbook Retina 12 Inch Early2015 Essentials Manual

 Chapter 4    Find answers 51
More resources, service, and support
You can find more information about your MacBook in System Report, in Apple Diagnostics, and 
through online resources.
System Report. To get information about your MacBook, use System Report. It shows you what 
hardware and software is installed, the serial number and operating system version, how much 
memory is installed, and more. To open System Report, choose Apple menu > About This Mac, 
then click System Report.
Apple Diagnostics....

5
  52
Safety, handling, and support
Important safety information
WARNING:  Failure to follow these safety instructions could result in fire, electric shock, or other 
injuries, or damage to your MacBook or other property. Read all safety information below 
before using your MacBook.
Built-in battery. Don’t attempt to replace or remove the battery yourself—you may damage 
the battery, which could cause overheating and injury. The lithium-ion battery in your MacBook 
should be replaced by Apple or an...

 Chapter 5    Safety, handling, and support 53
Charging. Charge MacBook only with the included 29W USB-C Power Adapter, or with other 
third-party cables and power adapters that are compatible with USB-C and are compliant with 
applicable regulations. 
Using damaged cables or chargers, or charging when moisture is present, can cause fire,  
electric shock, injury, or damage to your MacBook or other property. When you use the included 
29W USB-C Power Adapter to charge your MacBook, make sure the USB-C...

 Chapter 5    Safety, handling, and support 54
Hearing loss. Listening to sound at high volumes may damage your hearing. Background noise, 
as well as continued exposure to high volume levels, can make sounds seem quieter than they 
actually are. Use only compatible earbuds, headphones, or earpieces with your MacBook. Turn on 
the audio and check the volume before inserting anything into your ear. For more information 
about hearing loss, see www.apple.com/sound.
WARNING:  To prevent possible hearing...

 Chapter 5    Safety, handling, and support 55
Important handling information
Operating environment. Operating your MacBook outside these ranges may affect performance:
 •Operating temperature: 50° to 95° F (10° to 35° C)
 •Storage temperature: -13° to 113° F (-25° to 45° C)
 •Relative humidity: 0% to 90% (noncondensing)
 •Operating altitude: Tested up to 10,000 feet (0 to 3048 meters)
Carrying your MacBook. If you carry your MacBook in a bag or briefcase, make sure there are 
no loose items (such as...

 Chapter 5    Safety, handling, and support 56
Understanding ergonomics
When you use the keyboard and mouse, your shoulders should be relaxed. Your upper arm and 
forearm should form an angle that is slightly greater than a right angle, with your wrist and hand 
in roughly a straight line.
Not this
This
Use a light touch when typing or using the trackpad and keep your hands and fingers relaxed. 
Avoid rolling your thumbs under your palms.
Not this
This
Change hand positions often to avoid fatigue. Some...

 Chapter 5    Safety, handling, and support 57
FCC regulatory compliance
This device complies with part 15 of the FCC rules. Operation is subject to the following two 
conditions: (1) This device may not cause harmful interference, and (2) this device must accept 
any interference received, including interference that may cause undesired operation.
Note:  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...

 Chapter 5    Safety, handling, and support 58
Canadian regulatory compliance
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject 
to the following two conditions: (1) this device may not cause interference, and (2) this device 
must accept any interference, including interference that may cause undesired operation of 
the device.
Operation in the band 5150–5250 MHz is only for indoor use to reduce the potential for harmful 
interference to co-channel mobile...

 Chapter 5    Safety, handling, and support 59
ENERGY STAR® Compliance Statement
As an ENERGY STAR partner, Apple has determined that standard configurations of this 
product meet the ENERGY STAR guidelines for energy efficiency. The ENERGY STAR program is 
a partnership with electronic equipment manufacturers to promote energy-efficient products. 
Reducing energy consumption of products saves money and helps conserve valuable resources.
MacBook is shipped with power management enabled, with the computer...

 Chapter 5    Safety, handling, and support 60
European Union—Disposal Information
The symbol above means that according to local laws and regulations your product and/or its 
battery shall be disposed of separately from household waste. When this product reaches its 
end of life, take it to a collection point designated by local authorities. The separate collection 
and recycling of your product and/or its battery at the time of disposal will help conserve 
natural resources and ensure that it is...