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Customer Service: 1-888-999-4215

GPX

DC battery power: built-in rechargeable battery

Connect the digital media player to a computer using a USB 

cable (included) to a computer to charge.

Power

Setup

• 

Digital audio: MP3, WMA (non-DRM), WAV

• 

Digital video: MP4, MTV

• 

Digital photos: JPEG, BMP

• 

eBooks: TXT

• 

4GB installed flash memory

• 

Virtual hard drive

• 

1.44”  TFT LCD display

• 

Resolution: 128 x 128

• 

Built-in microphone

• 

Voice recording

• 

Hold function

• 

System requirements: Windows 2000, Windows XP, Windows Vista, 

Windows 7

• 

Preset EQ

• 

Mini-USB port, 2.0 high speed

• 

Stereo headphone jack

• 

DC battery power: built-in rechargeable lithium ion battery

• 

Battery life: ~12 hours audio, ~4 hours video

• 

Mini-USB to USB cable

• 

One set of stereo earbuds

• 

Warranty

• 

User’s guide

Digital Media Player

Introduction

Features

Features

USER’S GUIDE

V:1530-0119-11

For the most up-to-date version of this User’s Guide, go to 

www.gpx.com

ML451B

Digital Media Player

MIC

HOLD / ON / OFF

RESE

T

VOL

VOL

ML

451

B

HOME

Press to return to 

the previous menu.

SKIP/SEARCH

Press to skip 

between tracks. 

Press and hold 

to search an 

individual track.

MICROPHONE

VOLUME

Press to adjust the 

volume.

 

PLAY/PAUSE

Press to play or 

pause tracks.

ARROWS

Press to navigate 

the on-screen 

menus.

HOLD/ON/OFF

Slide to power on 

and lock or unlock 

the buttons. Slide 

and hold to power 

off.

RESET

Use a paperclip or 

like object to reset 

the digital media 

player.

MINI-USB 

PORT

STEREO 

HEADPHONE 

JACK

To download this User’s Guide in English, Spanish, or French, 

visit the support section  at www.gpx.com.
Para transferir esta guía de usuario en inglés, español, o 

francés, visite la sección de la ayuda en www.gpx.com.
Pour télécharger ce guide de l’utilisateur en anglais, 

espagnol, ou français, visitez la section de soutien chez www.

gpx.com.

Phone

: 1-888-999-4215

Email

: [email protected]

Parts Email

: [email protected]

Website

: www.gpx.com

Company Information

International Support

Contact Information

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