Astell Kern PEM21 Portable Wired Wireless Bluetooth User Guide

PEM21
QUICK START GUIDE

Package Contents

• AK PEM21 – Charging cable – C to C cable – C to Lightning cable – Quick Start Guide
• Warranty Card

The charging adapter is sold separately.
Please use a charger that meets the specifications.
The user manual can be downloaded from Support > Download at[ http://www.astellnkern.com].
Components Turn on/off power

1. To turn on the power, press and hold the power button on the side of your product for 3 seconds.
2. To turn off the power, press and hold the power button on the side of your product for 3 seconds while the power is on.

Charging

1. Connect your product to the supplied charging cable to charge it through the USB Type C charging port on the bottom of the product.
2. When charging starts, the [Power/Battery LED] blinks in white, and when charging is complete, the LED turns blue.
3. Short press the [Power Button] on the side of your product twice while the power is on to turn the charging mode on or off.
4.  You can check the status by checking the [Power/Battery LED] when turning the charging mode on or off.

When the charging mode is turned on while connected to a mobile device, it uses the battery power of the mobile device, and when the charging mode is turned off, it uses the AK PEM21’s battery.
When you turn off the AK PEM21 power and back on while the charging mode is off, the charging mode is automatically enabled.
Connecting in Bluetooth mode

1. When you turn on the product, it automatically enters the pairing standby mode, and the [Status LED] blinks in red and blue.
2. Turn on the Bluetooth feature on your mobile device settings.
3. Selecting [AK PEM21] from the list of detected devices will complete pairing with your mobile device, and the [Status LED] turns blue.

If it does not enter the pairing standby mode, press the [Bluetooth Pairing Button] on the side of the product for 3 seconds to enter the pairing standby mode.
A device only needs to be paired once and will subsequently connect automatically.

Connecting in USB DAC mode

1. When the power is turned on, connect to a mobile device or PC with the supplied cable to connect in USB DAC mode.
2. When connected normally in USB DAC mode, the [Status LED] turns white.

Even when used in USB DAC, the Bluetooth connection is maintained and you can use the AK Control app simultaneously.
When connected to a Windows PC, you need to install a separate USB DAC Driver for high quality audio playback.
You can download the USB DAC Driver from www.astellnkern.com – Support – Download.

Button Operations

You can use the buttons on the side of the product to perform various functions.

Playing music

1. Play the music stored in your mobile device or stream music while connected to your mobile device.
2. When music is playing, the [Status LED] indicates information about the song currently playing.

When connected to a music playback device, please check the volume before wearing earphones or headphones.
Listening at maximum volume can cause serious hearing damage. Adjust the volume to an appropriate level before listening to music.

Accept/decline a call

If AK PEM21 is connected to your mobile device, you can check and answer calls from your mobile device.

1. To answer a call, press the [Media Button] on the side of the product once.
2. To decline a call, press and hold the [Media Button] on the side of the product for more than 1 second.
3. To end a call, press the [Media Button] once.

When connected to a music playback device, please check the volume before wearing earphones or headphones.
Listening at maximum volume can cause serious hearing damage. Adjust the volume to an appropriate level before listening to music.
When connected to an iPhone, the call function is not supported, and some Android smartphones with a 3.5mm port may not be able to make calls.

Specification

General Specification

earphones/headphones),
Balanced Out (4.4mm, only 5-pole supported)
Dimension| 33 x 68.4 x 16.5mm (Excluding volume wheel)
39.8 x 68.4 x 16.5mm (Including volume wheel)
Weight| about 40g (1.41oz)
Operation Temperature| -10℃ ~ + 50℃ (14℉~ 122℉)

Audio Specification

±0.011dB (Condition : 20Hz~20kHz) Balanced,
±0.125dB (Condition : 20Hz~70kHz) Unbalanced,
±0.126 (Condition : 20Hz~70kHz) Balanced
S/N| 118dB @ 1kHz, Unbalanced / 118dB @ 1kHz, Balanced
Crosstalk| -133dB @ 1kHz, Unbalanced / -135dB @ 1kHz, Balanced
THD+N| 0.0006% @ 1kHz, Unbalanced / 0.0006% @ 1kHz, Balanced
Output Impedance| 3.5mm (1.2ohm) / 4.4mm (1.7ohm)

Battery

Registered Trademarks LDAC and LDAC logo are trademarks of Sony Corporation.
Qualcomm aptx HD
Qualcomm aptX is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.
Qualcomm is a trademark of Qualcomm Incorporated, registered in the United States and other countries.
aptX is a trademark of Qualcomm Technologies International, Ltd., registered in the United States and other countries.
Disclaimers
The manufacturer, importer, and distributor shall not be liable for damages including accidental and personal injury due to the improper use or operation of this product.
The information in this user manual was written based on current product specifications.
The manufacturer, Dreamus Company, regularly adds new features via OTA updates and will continue to apply new technologies in the future. Product specifications may be changed without prior notice. There is no warranty against data loss due to the use of this  product.
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
The excessive sound pressure from earphones and headphones can cause hearing loss.
Certification
FCC ID: QDMPEM21
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.
FCC Interference Statement(Part 15.105)
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 are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to correct the nterference by one of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

FCC Caution
Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment. This transmitter must not be co-located or operating in conjunction with any otherantenna or transmitter.
FCC Radiation Exposure Statement (Part 2.1093)
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. This equipment complies with RF exposure requirements set forth for an uncontrolled environment.

References

• Astell&Kern

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