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Small black rectangular Bluetooth speaker with passive radiator

Ion Audio

Ion Audio Rock Block 15W portable speaker ISP36

SKU CH-FPT0-92V0R

Palm-sized 15 W Bluetooth speaker with passive radiator subwoofer, rechargeable battery and onboard track-skip button

  • Full-range speaker with passive radiator subwoofer delivers BIG sound
  • Wireless Bluetooth streaming from any compatible device for cable-free listening
  • Long-lasting rechargeable battery with USB charging cable included keeps music playing
  • Next Track button on speaker lets you skip songs without reaching for your phone
  • Palm-sized lightweight design fits in a backpack for beach, gym or park

Ultra-portable 15 W Bluetooth speaker

The Ion Audio Rock Block ISP36 is a palm-sized wireless speaker with a passive radiator subwoofer. It streams audio from Bluetooth devices and includes a USB charging cable for the built-in rechargeable battery. A Next Track button on the enclosure lets you skip songs without touching your phone.

For listeners who want grab-and-go sound

This unit suits anyone needing a lightweight speaker that fits in a backpack for the beach, park or office. Buyers who require stereo pairing, waterproof construction or a built-in microphone for calls should look at other models.

15 W output with passive radiator bass

The single full-range driver and passive radiator deliver the rated 15 W of audio power. That figure determines whether the volume and low-end response meet your expectations for outdoor or indoor use.

How it compares

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

Price $21.99
Cheaper than about 82% of the 862 comparable items (median $39.99).

Specifications

Product
Brand nameIon Audio
Model nameNot Available

Questions about this item

What devices can I stream music from using the Bluetooth wireless connection?

Any Bluetooth-compatible device such as a smartphone, tablet, notebook or computer can stream music wirelessly to the speaker.

Can I still play audio from a device that does not have Bluetooth?

Yes, the 1/8" auxiliary input lets you connect older hardware with a standard audio cable.

How do I know the speaker is paired and ready to play after setup?

Once paired, the Next Track button on the speaker will skip tracks on the connected device, confirming the link is active.

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