1Mii B03+ Bluetooth 5.3 Transmitter & Receiver — Dual Mode, Low Latency, TV Audio

One device, dual modes for modern listening

The 1Mii B03+ Bluetooth 5.3 Transmitter Receiver is designed to fit quiet nights in and busy living rooms. It lets you wirelessly send TV audio to Bluetooth headphones or speakers, and it can switch to receiver mode to add Bluetooth to your existing speakers for music from a phone, tablet, or laptop. The result is a flexible upgrade that respects your current gear while expanding how you listen.

• TX mode streams TV or other sources to Bluetooth headphones or speakers.
• RX mode adds Bluetooth to your wired speakers for mobile playback.

Family-friendly bypass mode and simultaneous outputs

The bypass feature enables TV audio to reach both Bluetooth headphones and wired speakers or a soundbar at the same time. This setup can accommodate different listening environments and preferences within a single system, reducing the need to swap cables or devices.

• Simultaneous wireless and wired playback options.
• Supports varied listening levels in a single room or home.

Clear pairing and on-device control

An easy-to-read LCD screen guides pairing, device selection, and volume control, so you can manage audio directly on the unit without relying on apps. Built-in volume controls on the device let you adjust sound quickly.

Premium sound with dual-link versatility

The B03+ supports advanced codecs for high-fidelity audio with low latency, including aptX HD, aptX Adaptive, and aptX Low Latency. You can connect up to two Bluetooth headphones or speakers at once, enabling shared listening or separate usage in different rooms.

• aptX HD and aptX Adaptive for richer detail and responsiveness
• aptX Low Latency helps reduce delay where supported

Flexible connections for many setups

Multiple analog and digital inputs and outputs broaden compatibility. Optical, RCA, and AUX 3.5 mm ports ensure you can link the B03+ to most TVs, soundbars, or receivers, turning almost any system into a wireless-ready hub.

Tips and best-use notes:

• To enjoy specific codecs, ensure your receiving device supports the corresponding Bluetooth codec.
• In TX mode, if your TV uses an optical output, set the TV to PCM format for smoother playback.
• When two aptX LL headphones are connected, the system may switch to a stable codec automatically.
• Do not run TX and RX modes simultaneously—select a mode before use.

Compact, intuitive design for everyday use

The B03+ combines a compact footprint with a clear LCD for quick setup beside TVs and audio gear. It’s built to supplement your existing speakers and setup without introducing clutter, making wireless listening feel natural.