1Mii NightPair

1Mii NightPair Bluetooth 5.3 Transmitter User Manual

Model: NightPair

1. Introduction

The 1Mii NightPair Bluetooth 5.3 Transmitter is designed to wirelessly transmit audio from your television or other audio sources to Bluetooth headphones or speakers. It supports simultaneous connection to two devices, offering a private listening experience without disturbing others. Featuring advanced audio codecs like aptX Low Latency, aptX Adaptive, and aptX HD, it ensures high-quality sound with minimal delay.

1Mii NightPair Bluetooth Transmitter next to a couple watching TV with headphones

The 1Mii NightPair allows for private TV listening with Bluetooth headphones.

This device is ideal for late-night viewing, gaming, or for individuals with hearing impairments who require higher volume levels without affecting others in the room. It offers broad compatibility with 99% of televisions and various audio input options.

2. Package Contents

Please verify that all items are present in the package:

  • 1Mii NightPair Bluetooth Transmitter
  • USB Charging Cable
  • 3.5mm to RCA Audio Cable
  • 3.5mm Audio Cable
  • Optical Cable
  • User Manual
Diagram showing the 1Mii NightPair Bluetooth Transmitter and its included accessories: USB charging cable, 3.5mm-RCA audio cable, 3.5mm audio cable, optical cable, and user manual.

Included components of the 1Mii NightPair package.

3. Setup Instructions

3.1 Power Connection

Connect the supplied USB charging cable to the DC IN port on the transmitter and plug the other end into a USB power source (e.g., TV USB port, USB wall adapter). The device is powered via a corded electric connection.

3.2 Audio Input Connection

The NightPair transmitter supports AUX, Optical, and RCA audio inputs. Choose the appropriate cable based on your TV or audio source's output ports:

  • Optical (OPT): For digital audio output. Connect the optical cable from your TV's optical output to the OPTICAL input on the transmitter.
  • AUX (3.5mm): For analog audio output. Connect the 3.5mm audio cable from your TV's headphone jack or AUX output to the AUX input on the transmitter.
  • RCA: For analog audio output. Use the 3.5mm to RCA cable to connect your TV's RCA (red and white) audio outputs to the AUX input on the transmitter.
Back view of the 1Mii NightPair transmitter showing DC IN, Optical, AUX, and ON/OFF ports, with diagrams illustrating connections to TV via Optical, AUX, or RCA.

Connect the transmitter to your TV using the appropriate audio cable.

Important Note for Optical Connection: If using the optical output from your TV, ensure your TV's audio output format is set to PCM. Otherwise, there will be no sound output.

3.3 Pairing with Bluetooth Headphones/Speakers

  1. Turn on the 1Mii NightPair transmitter using the ON/OFF switch.
  2. Put your Bluetooth headphones or speaker into pairing mode. Refer to your audio device's manual for specific instructions.
  3. On the NightPair transmitter, press and hold the '1' or '2' pairing button (indicated by headphone icons) for approximately 3-5 seconds until the corresponding LED indicator flashes rapidly, signifying pairing mode.
  4. Place your Bluetooth audio device close to the transmitter. They should automatically connect. Once connected, the LED indicator on the transmitter will turn solid blue.

4. Operating Instructions

4.1 Single Device Connection

After successful pairing, audio from your connected TV or source will be transmitted to your Bluetooth headphones or speaker. For optimal low latency performance (aptX LL), ensure your receiving device also supports aptX LL. This codec is most effective when only one device is connected.

4.2 Dual Device Connection

The NightPair transmitter can connect to two Bluetooth headphones or speakers simultaneously:

  1. First, pair your primary Bluetooth device using the '1' pairing button as described in Section 3.3.
  2. Once the first device is connected, put your second Bluetooth device into pairing mode.
  3. Press and hold the '2' pairing button on the transmitter until its LED flashes rapidly.
  4. The second device will connect, and its LED will turn solid blue.
Two elderly people happily watching TV with separate Bluetooth headphones connected to the 1Mii NightPair transmitter.

Enjoy shared listening with two Bluetooth devices connected simultaneously.

Note: When two devices are connected simultaneously, the aptX LL codec is not supported, and the audio will downgrade to aptX or SBC, which may introduce a slight audio delay.

4.3 Volume Control

The NightPair transmitter features dedicated volume control buttons (- and +) to adjust the audio output level. This is particularly useful for Bluetooth headsets that lack their own volume controls.

A hand pressing the volume up button on the 1Mii NightPair Bluetooth Transmitter.

Adjust volume directly on the transmitter using the dedicated buttons.

5. Maintenance

To ensure the longevity and optimal performance of your 1Mii NightPair Bluetooth Transmitter, follow these maintenance guidelines:

  • Keep the device clean by wiping it with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
  • Store the transmitter in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.
  • Avoid dropping the device or subjecting it to strong impacts.
  • Do not attempt to disassemble or repair the device yourself, as this will void the warranty.

6. Troubleshooting

If you encounter issues with your 1Mii NightPair transmitter, please refer to the following common problems and solutions:

Problem Possible Cause / Solution
No sound output.
  • Ensure the transmitter is powered on and connected correctly to the audio source.
  • If using optical input, verify your TV's audio output format is set to PCM.
  • Check if your Bluetooth headphones/speakers are successfully paired and their volume is turned up.
  • Confirm the correct input mode is selected on the transmitter (if applicable, though NightPair auto-detects).
Audio delay (latency).
  • For aptX Low Latency (LL) to function, both the transmitter and your receiving Bluetooth device must support aptX LL.
  • aptX LL is only active when connecting a single Bluetooth device. Connecting two devices simultaneously will downgrade the codec to aptX or SBC, which has higher latency.
Cannot connect two devices simultaneously.
  • Ensure both devices are in pairing mode when attempting to connect.
  • Follow the dual connection steps in Section 4.2 carefully.
White noise or static in audio.
  • Ensure all cable connections are secure.
  • Try a different audio cable or input port.
  • Reduce the distance between the transmitter and your Bluetooth device.
  • Minimize interference from other wireless devices.
Transmitter does not remember preferred codec.
  • Some Bluetooth devices may default to a standard codec upon reconnection. You might need to manually cycle through codecs on the transmitter (if supported by specific model) or re-pair to establish the desired codec.
Compatibility chart showing the 1Mii NightPair transmitter is compatible with TVs, Bluetooth headphones, and speakers, but not with smartphones, hearing aids, or musical instruments.

Ensure your devices are compatible with the 1Mii NightPair transmitter.

7. Specifications

Brand 1Mii
Model NightPair
Connectivity Technology Bluetooth 5.3
Supported Audio Codecs aptX Low Latency, aptX Adaptive, aptX HD, aptX, SBC
Input Interfaces AUX (3.5mm), Optical, RCA
Power Source Corded Electric (USB)
Compatible Devices Bluetooth Headphones, PC, Speakers, TV
Control Method Buttons, Touch
Item Dimensions (L x W x H) 6.5 cm x 5.5 cm x 2 cm
Material Acrylonitrile Butadiene Styrene (ABS)
Color Black

8. Warranty and Support

The 1Mii NightPair Bluetooth 5.3 Transmitter comes with a 24-month warranty service from the date of purchase. If you encounter any issues or require assistance, please contact our professional customer service team. We are committed to providing support and resolving any concerns you may have.

For warranty claims or technical support, please refer to the contact information provided on the 1Mii official website or your purchase documentation.

© 2026 1Mii. All rights reserved.

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