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Small white rectangular Bluetooth 5.3 audio adapter with 3.5mm and RCA ports

1Mii ML300 Bluetooth 5.3 Transmitter Receiver White

SKU CH-VJTA-FE0K4

Bluetooth 5.3 audio adapter transmits or receives stereo sound via 3.5 mm AUX or RCA, supports aptX Low Latency, HD and Adaptive codecs, and pairs two headphones simultaneously

  • Audio channels4
  • Product colorWhite
  • Bluetooth 5.3 delivers faster, more stable wireless audio
  • aptX Low Latency keeps sound perfectly synced with video
  • Dual Link connects two headphones for shared listening
  • 2-in-1 transmitter and receiver adds Bluetooth to non-Bluetooth devices
  • 5 mm AUX and RCA ports fit TV, stereo, airplane and car systems

1Mii ML300 Bluetooth 5.3 Audio Adapter

The 1Mii ML300 is a Bluetooth 5.3 transmitter and receiver designed for TVs, airplanes, home stereos and gym equipment. It adds wireless audio to devices that lack built-in Bluetooth. Users who need aptX Adaptive, Low Latency or HD codecs will benefit from the selectable options. It is not for buyers who require a remote control or more than two simultaneous headphone connections.

Bluetooth 5.3 with aptX codec switching

Bluetooth 5.3 provides a stable link and backward compatibility down to version 2.0. The adapter supports aptX Low Latency, aptX HD and aptX Adaptive, but each codec only works when the connected headphones or speakers also support that specific format. Audio sync depends on both ends using the same low-latency codec. The 3.5 mm AUX and RCA ports handle analog audio; there is no digital optical or HDMI interface.

Simple pairing with dual-link LED guidance

Slide the switch to choose transmitter or receiver mode, then hold the Bluetooth button to enter pairing. A clear LED indicator shows status and which of the two links is active. Double-click the first Bluetooth button to cycle through SBC, aptX Low Latency, aptX HD and aptX Adaptive. Common issues include forgetting to match the codec on the headphones, leaving the mode switch in the wrong position, or not charging via the Type-C port before portable use.

How it compares

Measured against everything we stock in Wi-Fi & Bluetooth Audio Devices, at today’s prices. Recalculated every night.

Price $36.99
Cheaper than about 72% of the 297 comparable items (median $63.99).

Specifications

Product
Brand name1Mii
Model nameML300
Product colorWhite
Audio & video
Audio channels4
More details
Remote controllerNo

Questions about this item

Does the ML300 let me pick between transmitter and receiver modes?

Yes, the ML300 is a 2-in-1 unit. In transmitter mode it sends audio from a non-Bluetooth TV, PC or gym equipment to headphones. In receiver mode it streams Bluetooth audio from a phone to a wired speaker or car stereo.

What does aptX Low Latency actually do when I watch TV?

aptX Low Latency keeps sound in sync with the picture so voices match lip movements. Both the ML300 and your headphones must support aptX Low Latency or aptX Adaptive for this to work.

Which Bluetooth version is used and what does it limit?

The adapter uses Bluetooth 5.3, which is backward compatible with versions down to 2.0. The connection will run at the highest version both devices share.

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