Bluetooth Transmitter for TV with DAC and Dual Device Connection

In this review of the 1Mii Bluetooth transmitter for TV, the bottom line is simple: it is for anyone who wants flexible, higher-resolution wireless audio from a TV, PC, or stereo without replacing existing equipment. The unit's biggest selling point is its multi-mode design and high-res audio support thanks to an ESS DAC chip and aptX variants, which together give noticeably better fidelity and lower latency than typical native Bluetooth on many computers and smart TVs. Setup is straightforward and the device's long range and dual-device linking make it a practical daily solution.

Key Features

• Multi-mode support: The transmitter can switch between Transmitter, Receiver, and Bypass modes to integrate with TVs, PCs, or legacy stereos without extra adapters.
• Multiple interfaces: Optical, AUX, and RCA compatibility plus Type-C charging and a USB drive input let it accept or pass through nearly any consumer audio source.
• High-resolution sound: An ESS DAC chip and support for SBC, AAC, aptX, aptX-LL, aptX-HD, and aptX-AD codecs deliver clearer, more detailed audio than basic Bluetooth implementations.
• Dual device connection: It can pair with two Bluetooth headphones or speakers simultaneously, which is handy for shared listening or quick device switching.
• Long range transmission: Bluetooth 5.3 and a dual antenna design provide a stable signal over typical whole-house distances, rated at around 98 ft (30 m).

Who It's For

The 1Mii B03S is aimed at owners of smart TVs, PCs, and older home stereos who want to add wireless audio while preserving sound quality and minimizing lip-sync delay; its aptX-LL and aptX-AD support make it especially relevant for viewers and gamers who need low latency. It also suits households that want to share audio between two headphones or speakers at once, or to feed a stereo system that lacks native Bluetooth.

Anyone who needs an ultra-simple plug-and-play dongle with fewer configuration steps will appreciate it, but those requiring the loudest possible output or an all-in-one streaming hub may prefer a more powerful amplifier or a product with built-in streaming services. Also, if you need guaranteed absolute zero latency for professional audio monitoring, a wired connection remains preferable.

Pros & Cons

Pros

• Versatile modes (TX/RX/Bypass) let the same unit work with TV, PC, and legacy stereo gear.
• High-resolution codecs and an ESS DAC improve clarity and reduce noticeable lag compared with standard Bluetooth on many devices.
• Dual-link pairing and a long quoted range increase flexibility for shared listening and whole-house use.

Cons

• Some users reported the maximum volume could feel limited on certain setups, so external amplification may be needed for loud rooms.

Specifications

Modes	Transmitter, Receiver, Bypass
Audio chip	ESS DAC chip
Bluetooth version	Bluetooth 5.3
Supported codecs	SBC, AAC, aptX, aptX-LL, aptX-HD, aptX-AD
Inputs/outputs	Optical, AUX, RCA, Type-C charging, USB drive input
Dual connection	Connect up to two Bluetooth devices simultaneously
Range	Over 98 ft (30 m) quoted

Our Verdict

The 1Mii Bluetooth transmitter is a practical, value-oriented way to add high-res wireless audio and low-latency performance to a TV, PC, or old stereo. Its multi-mode design, ESS DAC, and broad codec support make it a good buy for viewers, casual gamers, and shared-listening households, though those needing louder output or professional zero-latency monitoring should consider additional amplification or wired options.

Frequently Asked Questions

Can it connect to two headphones at once?
Yes, the unit supports dual Bluetooth device connections so two headphones or speakers can play simultaneously.

Which audio inputs does it accept?
It accepts optical and AUX (RCA) inputs, and also has a USB drive input plus Type-C charging.

Does it reduce audio delay for TV watching?
Yes, support for aptX-LL and aptX-AD and the ESS DAC help reduce latency compared with many native Bluetooth implementations, improving lip-sync for TV and gaming.