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Pair of compact black rectangular outdoor speakers with wall-mount brackets, 3.5-inch drivers, Bluetooth 5.3, IP44 rated

Gemini STU-301BTB 3.5" 3-way outdoor speaker pair 200W Bluetooth 5.3 IP44 black

SKU CH-B8NP-ZD0BT

Pair of 3.5-inch 3-way outdoor speakers with Bluetooth 5.3, IP44 weather resistance and 200 W power

  • Audio channelsSubwoofer Only
  • Sales unitSystem
  • Speaker setupOutdoor
  • Driver size6.5 in (16.5 cm)
  • Rated power200 W
  • Rated impedance4 Ohms
  • Bluetooth 5.3 gives stable wireless streaming up to 33 ft
  • IP44 rating protects against rain and dust on patios
  • 3-way 200 W system with 1.0" tweeter and 3.5" woofer delivers full-range sound
  • Bass-reflex vent and butyl rubber surround add deep low-end response
  • Removable brackets and quick-connect terminals simplify wall mounting

Outdoor Bluetooth 5.3 speaker system

The Gemini STU-301BTB is a paired active and passive outdoor speaker system designed for patios, decks and covered porches. It uses Bluetooth 5.3 for wireless streaming up to 33 feet and includes a 3.5 mm auxiliary input for wired sources. The IP44-rated ABS cabinets with butyl rubber surrounds resist rain and dust in marine-grade environments. Mounting brackets and a 2.5 metre speaker cable are supplied for straightforward wall installation.

Upgrade from single portable units

This system replaces standalone battery speakers that lack sustained output and weather sealing. The 200 watt three-way design adds a dedicated 1.0 inch dome tweeter and 3.5 inch injection cone woofer plus a bass reflex vent for deeper low-frequency response. The jump is worth it when you need consistent stereo coverage across a larger outdoor area without recharging batteries or moving hardware between locations.

Sustained output in fixed installations

Under continuous playback the corded 12 V 3 A power supply feeds the active module directly, avoiding the voltage sag common in battery-powered units. The 4 ohm nominal impedance and bass reflex vent help maintain low-frequency headroom during extended sessions. The sealed cabinet and rubber surround protect the 6.5 inch driver assembly from moisture ingress that would degrade performance over time in exposed mounting positions.

How it compares

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

Price $74.99
Cheaper than about 73% of the 1,147 comparable items (median $133.99).

Specifications

Product
Brand nameGemini
Product lineSTU-301BTB
Part numberSTU-301BTB
Product typeSubwoofer
Product colorBlack
Audio & video
Audio channelsSubwoofer Only
Speaker setupOutdoor
Driver size6.5 in (16.5 cm)
Rated impedance4 Ohms
Power
Rated power200 W
Power supplyCorded Electric
Size & build
Size and weight120 × 120 × 25 mm 4.72 × 4.72 × 0.98 in
In the box
Sales unitSystem

Questions about this item

What mounting hardware and bracket dimensions come with the STU-301BTB?

Two removable mounting brackets and four metal screws are included; each speaker cabinet measures 120×120×25 mm.

How do I connect the active and passive speakers, and what step is often missed?

Run the supplied 2.5 m speaker cable between the quick-connect terminals on the active and passive units; the step often missed is tightening both terminal sets before powering on.

Which components may need replacement after extended outdoor use?

The butyl rubber surrounds on the 3.5" woofers and 1.0" dome tweeters can degrade over time, and the 12 V 3 A power adapter may eventually require replacement.

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