Siyuio MT09 6-Pack Ultrasonic Pest Repeller

Siyuio MT09 is a six-pack of plug-in ultrasonic pest repellers with four selectable modes and a claimed combination of ultrasonic frequencies and electromagnetic pulses. The listing describes room-by-room placement, but its coverage and performance statements are manufacturer claims rather than independently verified results.

At a glance

Four selectable modes are described, including a silent setting and options with a low hum or maximum output.
The listing claims ultrasonic frequencies combined with electromagnetic pulses to target a range of common pests.
Six units are promoted for room-by-room placement. The stated coverage is up to 1,600 sq. ft. per unit.
An LED indicator is said to show the selected mode.

Price

£22.94Save 15%

Reference price: ~~£26.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Six plug-in units can be distributed across rooms rather than relying on one device.
Several operating modes provide options for different routines, including a claimed silent setting for bedrooms.
The listed 3–5W consumption is low on paper for a device intended to remain plugged in.

Cons

The listing's claimed coverage and pest-deterrent effects are not independently verified in the supplied information.

Technical specifications

8 specifications

Identity
Brand	Siyuio

Dimensions and installation
Dimensions listed	8 x 6 x 10 cm; 200 g
Power source	ac
Part number	MT09

Operating claims
Ultrasonic frequency range	20–100kHz
Claimed coverage per unit	up to 1,600 sq. ft.
Power consumption	3–5W
Claimed operating schedule	24/7

What to know before buying

The listing says to leave units plugged in continuously and warns that pest activity may appear to rise during the first one or two weeks before results are expected around weeks three to four. These are manufacturer usage and performance claims, not guarantees.

Who is it for?

A good fit for

Households wanting multiple plug-in units to distribute around indoor rooms.
Buyers seeking selectable operating modes, including a claimed silent option.
People interested in a low stated power draw for continuous operation.

Less suited to

Buyers who need independently verified pest-control results or guaranteed coverage.
Anyone who requires a proven timeframe for reducing pest activity.

Siyuio MT09 6-Pack Ultrasonic Pest Repeller · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 25 ratings

5 stars100%100%
4 stars0%0%
3 stars0%0%
2 stars0%0%
1 star0%0%

The supplied rating information is uniformly five-star across a relatively small set of ratings, but no written feedback is available. That indicates positive rating scores in the supplied data, not what customers liked, whether the repellers worked, or how they performed across different rooms and pests.

Frequently asked questions

How many devices are in this listing?

The title describes a six-pack. The supplied information does not include a detailed package inventory, so confirm the selected listing if pack contents are important.

What modes does the MT09 offer?

The listing describes four modes. It characterises blue as silent, yellow as a gentle low hum and red as maximum output, but does not explain the fourth mode in the supplied feature text.

What area does each unit claim to cover?

The listing claims up to 1,600 sq. ft. per unit and recommends placing one in each room for whole-home coverage. Treat this as a manufacturer claim, not a verified coverage measurement.

Does the listing guarantee when pests will decrease?

No. It suggests activity may initially appear to rise and says fewer pests should be noticed by weeks three to four, but this is a product claim rather than a guaranteed outcome.