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Black cube-shaped portable speaker with LED display and RGB lighting

coioc S18 portable Bluetooth speaker 30W 25H IPX7 55mm drivers RGB

SKU CH-8MMC-P3T1D

A portable Bluetooth 5.4 speaker delivers 30 W stereo sound from dual 55 mm drivers, runs 25 hours, and withstands immersion with IPX7 waterproofing

  • Spec summaryBass Boost, Built In Microphone, Display, Dustproof, LED Lig
  • Product colorBlack
  • Key featuresBass Boost, Built In Microphone, Display, Dustproof, LED Lig
  • Product dimensions5.0 in × 5.0 in × 5.0 in
  • 360-degree stereo sound fills the room
  • 30W output with dual 55mm drivers delivers deep bass
  • Bluetooth 5.4 pairs two speakers for true wireless stereo
  • IPX7 waterproof rating withstands full immersion
  • 25-hour playtime keeps music going all day

Portable 30W stereo speaker

The coioc S18 is a compact Bluetooth 5.4 speaker that delivers 30W of audio power through dual 55mm drivers. It is built for listeners who want immersive 360° stereo sound in a dustproof and IPX7 waterproof enclosure. The integrated LED display and colourful RGB lighting add visual feedback for outdoor gatherings, home use or travel. A built-in microphone enables hands-free calls when paired with a phone.

Fits a bag, runs on its own battery

Measuring 5.0 in on each side, the cube-shaped unit slips into a backpack without needing an external amplifier or AC outlet during playback. Bluetooth 5.4 handles the wireless link to a source device, while a USB port provides a wired charging path for the internal battery. True Wireless Stereo pairing lets two S18 units link together for wider channel separation without cables between them.

25-hour playtime at moderate levels

The rated 25H playtime reflects sustained output at typical listening volumes rather than a short burst at maximum power. Bass Boost mode increases low-frequency energy continuously, so battery draw rises accordingly during extended sessions. IPX7 sealing protects the drivers and electronics from water ingress during prolonged outdoor use, and the dustproof rating helps maintain consistent performance in sandy or dusty environments.

How it compares

Measured against everything we stock in Bluetooth & Party Speakers, at today’s prices. Recalculated every night.

Price $24.99
Cheaper than about 77% of the 862 comparable items (median $39.99).

Specifications

Product
Brand nameCoioc
Model nameS18
Product colorBlack
Size & build
Product dimensions5.0 in × 5.0 in × 5.0 in

Questions about this item

At what volume level does the 30 W amplifier start to compress the 360° stereo output during a long session?

The 30 W amplifier powers two 55 mm drivers in a 360° stereo layout; sustained high-volume use will eventually hit the amplifier’s thermal limit before the drivers reach their mechanical limit.

How hot does the cabinet get and does the fan noise rise after several hours of continuous playback?

The sealed IPX7 enclosure has no active cooling, so the exterior warms noticeably after extended play but stays safe to touch; there is no fan, so acoustic noise does not increase with temperature.

Which source devices and cables are required to use Bluetooth 5.4, TWS pairing and the USB port on this speaker?

Any phone, tablet or computer supporting Bluetooth 5.4 can stream audio; a second identical S18 speaker is needed for TWS stereo pairing; the USB port accepts a standard USB-A cable for charging the internal battery.

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