Naxa NPB-257 (Blue)

Portable CD/MP3/USB Player AM/FM Radio Bass Boost Boombox with Aux Input and AC/DC Power (NPB-257BL)


We apologize

This item has been discontinued

Get FAST answers from customers ASK a Question See questions answers

NAXA NPB-257, The REAL All-In-One Solution

The next time you are planning a camping trip, possibly a party, or taking the kids to the park or pool, you will want to make sure you have your NPB-257. The NAXA NPB-257 (NPB-257BL) is the complete package. It sounds as hot as it looks, with its sleek, two-tone design, and its built-in stereo speakers with X-Bass Boost. The crystal clear sound will fill the room, maybe the house. The NPB257 is Capable of playing back anything you or your guests could imagine. The CD Player is a given, sure the CD, CD-R and CD-RW is a plus. The AM/FM Radio is almost a requirement now. But the real bonus lies within the 3.5mm Auxiliary Input, and USB Input, allowing users to customize their own mix, books, Internet Radio Stations only limited by the insanely large hard drive of their smartphone, of flash drive. Just make sure you have enough size "D" batteries, or a power outlet nearby!

What's In The Box?
  1. NAXA NPB-257 Portable Stereo System (Blue)
  2. Detachable AC Power Cable
  3. Owners Manual/Safety Guide
  4. Warranty Information

General Features:

  • Lightweight Portable Stereo Speaker System with Dual AC / DC Power Option
  • Built-In Compact Disc Player
    • Compatible with all MP3 & CD-DA Files from CD / CD-R / CD-RW Type Discs
    • Play/Pause, Skip/Search, Repeat & Random Functions
  • USB Audio Input
    • Instantly play back your favorite mix, or sound track conveniently on your pocket sized flash drive
  • Telescopic Radio Antenna
    • Delivers Broad Radio Reception with Clear, Consistent Sound
  • Auxiliary Input Jack (3.5mm Mini Stereo Audio)
    • Universal Audio Input for your Smartphone, Tablet, or Portable Media Player
  • High Performance Stereo Speakers with X Bass Boost
    • Powerful Dynamic Speaker Drivers Emit Rumbling Bass Levels with the Push of a Button
  • Two-Way Power Options with AC or Battery Power
  • LED Digital Display
  • Convenient Carrying Handle
  • Manufacturer Model Number: NPB-257BL (NPB257BL)
  • Primary Color Tone: Black with Blue Accents
  • NAXA NPB-257 Portable CD/MP3/USB Player Radio Boom box Also Available In:
  • Authorized Internet Dealer
  • 90-Day Manufacturer Warranty
  • 1-Year Sonic Electronix Warranty

Product Specifications:

  • CD
    • Top Loading, Single Disc
    • Channels: 2 Channels
    • Optical Pick-Up: 3 Beams Laser
    • Frequency Response: 100 Hz - 16,000 Hz
  • Radio
    • AM Frequency Range: 530 - 1710 kHz
    • FM Frequency Range: 88 - 108 MHz
  • Audio:
    • Speaker Configuration: 2.0 Stereo
    • Power Output: 3.6 Watts (1.8 Watts x 2)
    • Features: Ported X-Bass Boost
  • Power Requirements:
    • AC: 110/220V ~ 50/60 Hz
    • DC: 12V 8 x 1.5V UM-1 / Size "D" Batteries (8 Size "D" Batteries, Not Included)
  • Power Consumption:
    • AC: 18 Watts
    • Operating Temperature: +5° C- +35° C
  • Product Dimensions (Approx.): 6.9"H x 15.9"W x 9.00"D (155mm x 385mm x 240mm)
  • Product Weight (Approx.): 4.50 Pounds (1.09 Kilograms)

Also Found As: NAXA NPB-257 Blue, NPB257 Blue, NPB-257BLU, NPB257BU, NPB-257 BL (NPB257 BL)

General Features

This will designate if the unit is capable of having an alarm set.
AM/FM Tuner
Most in-dash CD players have AM/FM playback allowing you listen to your favorite local radio stations.
Cassette Playback
If the unit offers audio playback from cassette, it will be designated here.
CD Player
This means that the unit is capable of playing CDs (Compact Discs).
TV Bands
TV Band compatible devices are capable of operating in the channels (also called white spaces) between the television channels in the USA.
Weather Bands
Weather Band compatible devices are capable of receiving continuous weather information directly from close-by National Weather Service offices. These broadcasts inform about Service warnings, watches, forecasts, other hazard information, as well as public safety information.
World Band
This means that the device is capable of receiving world band frequencies.
iPod Dockable
This designates if an iPod can be docked the particular device. This feature applies it to home DVD/Blu-ay players, iPod accessories, alarm clocks, and more. When an iPod is docked, it will charge the iPod. Some devices will support the playback of video off of a docked compatible iPod. Some players include a dock or have one built-in, while others require you to purchase it separately.
Yes (Connection via USB)
Power Requirement
This is the required way to give the unit power. Common power sources are 120V AC (Common house plugs), batteries, or a combination of the two.
100-240V AC
Power Source
The type of battery the item uses. Some batteries are rechargeable, while others are not.

Rechargeable alkaline, nickel cadmium, nickel metal hydride, lithium ion, and lithium ion polymer are all examples of rechargeable batteries.

Some batteries are integrated and built into the item, while others are removable.

The width of the item from left to right (side-to-side) measured in inches.
The height of the item, measured from top to bottom, in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
LCD Display
This means that the item has a LCD display on the front of the unit. This display will show various information such as time, settings, options, menus, or more. What the LCD display shows depends on the type of item.
Bluetooth Connectivity
Bluetooth® technology allows two or more electronic devices to communicate with each other wirelessly, such as using your cell phones "hands-free" or transmitting music to Bluetooth enabled receiver. If a unit is Bluetooth capable, it typically can allow you to connect to your Bluetooth cell phone to make and receive calls. Others can access your phone and address book too via Bluetooth. Other Bluetooth capable units offer even more services, such as live traffic information and map upgrades.

More uses of Bluetooth technology include transmitting music to a compatible receiver, printing wirelessly from a computer, and many other wireless uses. Please see the item description for more specific information regarding what features the unit includes.

USB Ports
This is the number of USB ports on the charger.
Auxiliary Input
This refers to whether or not the unit has an auxiliary input for connecting additional accessories.
Remote Control
Allows control of specific features and functions from a remote control. Typically they are used to prevent button wear on your radio, or to allow easier navigation of menus.
Primary Color
This is the main color of the item.
Secondary Color
A color that compliments the main color of the product.

Specials with this Item

Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
90 days
Labor Warranty Duration
90 days
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Mascoutah, IL

Daughter loves it!

January 11, 2014

Bought this for my daughter for Christmas 2013, and she loves it. Great colors, sound, and love the USB feature.

9 of 12 found this helpful

Was this review helpful to you?

Browse 1 question and 1 answer
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
I was looking for something like this and found it in very competitive price.
Chinmaya B on Aug 26, 2014

Product Summary


Model Number




Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Naxa NPB-257 (Blue)

Item Added to Cart

Naxa NPB-257 (Blue)

Portable CD/MP3/USB Player AM/FM Radio Bass Boost Boombox with Aux Input and AC/DC Power (NPB-257BL)


Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
Add Warranty
3 years of protection