Can this connect to speaker output for rear speakers?

The input is for a line level out from a sound source BEFORE an amplifier. IF you are looking for something to use on the speaker side of an amplifier this WILL NOT WORK.

I tried using this for a bose bass 500 subwoofer which has a 3.5mm audio plug at each end, but it didn't work. bose may use a special signal. ideas?

This is designed for a line out from the source to the amp. It uses RCA jacks. If you are using between amp and speakers, that is an amplified signal and most likely overdriving this unit. Just my thoughts. Hope this helps.

Is it possible to get replacement antennas for the RT5066? Mine are missing.

I am not sure but I don't see why not. You can use other antenna that fits the thread.

Can you buy an extra receiver? I need 1 transmitter and 2 receivers.

The product we don't sell separately comes in a complete set.

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1Mii 2.4Ghz (1 TX + 1 RX) Wireless Audio Transmitter Receiver for TV, 320ft Long Range 20ms Low Delay HiFi Audio, Wireless Adapter Kit for Powered Speaker/Stereo, RCA(3.5mm AUX) Out/Input

1Mii 2.4Ghz (1 TX + 1 RX) Wireless Audio Transmitter Receiver for TV, 320ft Long Range 20ms Low Delay HiFi Audio, Wireless Adapter Kit for Powered Speaker/Stereo, RCA(3.5mm AUX) Out/Input

Product ID: 398052450

Details

Audio Output Mode
Stereo
Brand
1Mii
Color
black
Compatible Devices
Home Stereo
Connectivity Technology
2.4GHz
Connector Type
RCA

⚡20ms ultra-low audio latency

📡320ft ultra-long wireless range

🔊HiFi stereo sound quality

€ 111.44

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Description

🎧 Cut the cords, not the quality — wireless audio that keeps you connected and ahead of the curve!

PLUG PLAY SIMPLICITY - Instant connection with RCA and 3.5mm AUX inputs—no tech headaches, just pure audio bliss.
UNIVERSAL COMPATIBILITY - Works effortlessly with powered speakers, home stereos, amplifiers, and TVs for versatile setups.
NEAR ZERO DELAY AUDIO SYNC - Experience crystal-clear sound with less than 20ms latency—perfect for TV, gaming, and movies.
SEAMLESS 320 FT WIRELESS FREEDOM - Cut the cords and stream your audio across rooms or even your backyard without signal dropouts.
INTERFERENCE RESISTANT 2 4 G HZ TECH - Stable, noise-free audio even in busy WiFi environments—your soundtrack stays uninterrupted.

The 1Mii RT5066 is a 2.4GHz wireless audio transmitter and receiver kit designed for professional-grade HiFi stereo sound with ultra-low 20ms latency. It supports a remarkable 320ft transmission range, enabling seamless wireless audio streaming from TVs, DVD players, or MP4 devices to powered speakers, amplifiers, or home stereo systems via RCA and 3.5mm AUX connections. Plug-and-play ready, it ensures stable, interference-resistant audio perfect for modern living spaces and professional setups.

Specifications

ASIN	B09MCGQ8S2
Audio Output Mode	Stereo
Audio Output Type	Speakers
Best Sellers Rank	#23,563 in Electronics ( See Top 100 in Electronics ) #117 in Wireless Audio Receivers & Adapters
Brand	1Mii
Built-In Media	1Mii RT5066 Wireless Audio Transmitter+ Receiver, Antenna 2, DC 5V Power Cable+Power Adapter 2, RCA Audio Cable * 2, RCA to 3.5 Male Audio Cable * 2
Color	black
Compatible Devices	Home Stereo, Powered Speaker, Television
Connectivity Technology	2.4GHz, Wireless
Connector Type	RCA
Control Method	Remote
Controller Type	Push Button
Customer Reviews	4.1 out of 5 stars 652 Reviews
Format	WAV
Item Dimensions D x W x H	2.3"D x 3.8"W x 0.94"H
Manufacturer	1Mii
Mfr Part Number	RT5066R1
Model Number	RT5066
Number of Channels	2
Other Special Features of the Product	Audio Transmitter and Receiver w/ RCA Input& Output, HiFi Stereo Sound, Long Wireless Range 320ft (100m), Plug and Play, Wireless Powered Speaker Adapter 2.4Ghz Low Latency
Output Power	5 Watts
Output Wattage	5 Watts
Special Feature	Audio Transmitter and Receiver w/ RCA Input& Output, HiFi Stereo Sound, Long Wireless Range 320ft (100m), Plug and Play, Wireless Powered Speaker Adapter 2.4Ghz Low Latency Special Feature Audio Transmitter and Receiver w/ RCA Input& Output, HiFi Stereo Sound, Long Wireless Range 320ft (100m), Plug and Play, Wireless Powered Speaker Adapter 2.4Ghz Low Latency See more
Surround Sound Channel Configuration	2
Unit Count	1.0 Count
Warranty Description	1 year manufacturer
Wattage	5 watts
Wireless Technology	2.4Ghz

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€ 111.44

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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