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Black retro-style portable boombox with carry handle and speaker grille

Dolphin

Dolphin SP411BTBLK Retrobox Portable Audio - Black

SKU CH-J8N2-46TT7

A portable boombox with Bluetooth, AM/FM/SW radio, SD and USB playback, plus a rechargeable battery and optional D-cell backup

  • Product typeBoomboxes
  • Bluetooth streaming from any paired device
  • AM, FM and short-wave radio reception
  • SD and USB ports play MP3 files directly
  • Rechargeable lithium cell with optional D-cell backup
  • Carry handle converts to a shoulder strap

Retro Bluetooth Boombox

The Dolphin SP411BTBLK Retrobox is a portable boombox styled with a vintage look but equipped with modern Bluetooth streaming. It suits listeners who want a single device for radio, stored files and wireless playback from a phone or tablet. A built-in handle converts to a shoulder strap for easy carrying.

AM FM Shortwave and Bluetooth

The decisive specification is the triple-band tuner covering AM, FM and shortwave alongside Bluetooth connectivity. Buyers who only need a basic Bluetooth speaker without radio bands, or who require internet radio or DAB+ reception, will not find those features here.

Rechargeable with D-Cell Backup

Under sustained use the internal lithium battery provides cordless listening and can be topped up from AC or DC power. When the rechargeable cell is exhausted, optional D-cell batteries take over so playback continues without a mains connection. An integrated LED torch adds a practical light source during extended outdoor sessions.

How it compares

Measured against everything we stock in Earbuds, Earphones & Mini Speakers, at today’s prices. Recalculated every night.

Price $28.99
Cheaper than about 70% of the 231 comparable items (median $40.99).

Specifications

Product
Product typeBoomboxes

Questions about this item

What does the SP411 model number tell me about this speaker?

SP411 identifies this Dolphin Retrobox as a portable boombox with Bluetooth, AM/FM/SW radio, USB and SD card playback, a 3.5 mm aux input, rechargeable lithium battery, AC/DC power and optional D-cell backup.

How does the Bluetooth connection work with my phone?

Pair the speaker with any Bluetooth audio source to stream music wirelessly; the link also carries playback controls from the connected device.

What are the physical requirements for carrying or mounting it?

A built-in handle converts into a shoulder strap for portable use, and the unit runs on its internal battery or standard D cells when mains power is unavailable.

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