VR-robot Bluetooth 5.0 Audio Transmitter Receiver Adapter (Model: VR-NK321) User Manual

1. はじめに

This manual provides instructions for the VR-robot Bluetooth 5.0 Audio Transmitter Receiver Adapter, Model VR-NK321. This versatile 2-in-1 device allows you to wirelessly transmit audio from non-Bluetooth devices to Bluetooth headphones or speakers, or receive audio wirelessly from Bluetooth-enabled devices to wired audio systems. It features Bluetooth 5.0 technology for stable connections and supports aptX Low Latency for synchronized audio.

This image displays the VR-robot Bluetooth 5.0 Audio Transmitter Receiver Adapter, a compact black device, alongside its accompanying 3.5mm audio cable and RCA adapter cable.

2. 安全情報

安全な操作を確保し、デバイスの寿命を延ばすために、次の注意事項を守ってください。

• Handle the device with care to avoid exposure to high temperatures, excessive humidity, or direct sunlight.
• 本製品を分解または改造しないでください。許可されていない改造は保証の対象外となり、安全上のリスクが生じる可能性があります。
• デバイスを落としたり、強い衝撃を与えたりしないでください。
• The device contains a lithium-polymer battery. Please follow local regulations for proper disposal of batteries.

3. パッケージ内容

以下にリストされているすべてのアイテムがパッケージに含まれていることを確認してください。

• 1x VR-robot Bluetooth 5.0 Audio Transmitter/Receiver Adapter
• マイクロUSB電源ケーブル×1
• RCAケーブル1本
• 1x 3.5mm補助ケーブル
• ユーザーマニュアル x 1

This image displays the complete package contents: one Bluetooth 5.0 Audio Transmitter/Receiver Adapter, one Micro USB Power Cable, one RCA Cable, one 3.5mm Aux Cable, and the User Manual.

4.製品オーバーview

アダプタのコンポーネントについて理解しておいてください。

詳細な view of the VR-robot Bluetooth adapter, highlighting its key components: the Power Switch, Indicator Light, Exchange Mode Button (RX/TX), Charging Socket, and Audio Socket.

• 電源スイッチ： デバイスの電源をオンまたはオフにします。
• インジケーターライト: Displays the device's status (e.g., pairing, connected, charging).
• Exchange Mode Button (RX/TX): Slides to switch between Receiver (RX) and Transmitter (TX) modes.
• 充電ソケット： 内部バッテリーを充電するためのマイクロ USB ポート。
• オーディオソケット: 3.5mm audio input/output port for connecting to audio devices.

5. セットアップと充電

5.1. 初期充電

Before first use, fully charge the adapter. Connect the Micro USB Power Cable to the adapter's charging socket and the other end to a USB power source (e.g., computer USB port, USB wall adapter). The indicator light will show charging status and turn off or change color when fully charged. The built-in 200mAh lithium battery ensures portable use without constant power connection.

5.2. ドライバーのインストール

No driver installation is required for this device. It operates on a plug-and-play basis.

6. 操作手順

6.1. 送信（TX）モードと受信（RX）モードの切り替え

The adapter features a physical switch to change between modes. Slide the switch to the desired mode (TX for Transmitter, RX for Receiver) before connecting or pairing.

6.2. 送信モード（TX）

In TX mode, the adapter transmits audio from a non-Bluetooth device to Bluetooth headphones or speakers.

1. Ensure the adapter is switched to TXモード.
2. Connect the adapter's 3.5mm audio socket to the audio output port of your non-Bluetooth device (e.g., TV, home stereo system, CD player, PC) using the provided 3.5mm audio cable or 3.5mm to 2RCA cable.
3. Turn on the adapter. The indicator light will flash, indicating it is searching for Bluetooth devices.
4. Bluetooth ヘッドフォンまたはスピーカーをペアリング モードにします。
5. The adapter will automatically search for and connect to nearby Bluetooth audio devices. Once connected, the indicator light will change to a steady blue.

This diagram shows the adapter in Transmitter (TX) mode, connecting a non-Bluetooth audio source like a TV, computer, or MP3 player to Bluetooth headphones or a Bluetooth speaker.

注記： The adapter supports pairing with one Bluetooth receiver (headphones or speaker) at a time in TX mode.

6.3. 受信モード（RX）

In RX mode, the adapter receives audio wirelessly from a Bluetooth-enabled device and outputs it to a wired audio system (e.g., wired speakers, headphones, car stereo).

1. Ensure the adapter is switched to RXモード.
2. Connect the adapter's 3.5mm audio socket to the audio input port of your wired stereo, speakers, or headphones using the provided 3.5mm audio cable or 3.5mm to 2RCA cable.
3. Turn on the adapter. The indicator light will flash, indicating it is in pairing mode.
4. On your Bluetooth-enabled device (e.g., phone, tablet, computer), enable Bluetooth and search for new devices. Select "VR-NK321" (or similar name) from the list of available devices to pair.
5. Once connected, the indicator light will change to a steady blue. You can now stream audio from your Bluetooth device to your wired audio system.

This diagram illustrates the adapter in Receiver (RX) mode, enabling a wired stereo system, speakers, or headphones to receive audio wirelessly from a Bluetooth-enabled phone, tablet, or computer.

7。 トラブルシューティング

If you encounter issues with your VR-robot Bluetooth adapter, refer to the following common solutions:

• デバイスの電源が入らない: デバイスが完全に充電されていることを確認してください。Micro USBケーブルを使用して電源に接続してください。
• Bluetoothデバイスとペアリングできません:
  • アダプターが目的の用途に適したモード (TX または RX) になっていることを確認します。
  • Make sure the adapter and the target Bluetooth device are within close proximity (within 33 feet or 10 meters).
  • 両方のデバイスをペアリングモードにします。
  • Turn off other Bluetooth devices nearby to prevent interference or unintended connections.
  • Restart both the adapter and the Bluetooth device you are trying to pair with.
• 音声が出ない、または音質が悪い:
  • すべてのケーブル接続が確実に固定され、オーディオ入力/出力ポートに正しく挿入されていることを確認します。
  • Verify that the volume levels on both the adapter and the connected audio devices are appropriately set.
  • Ensure the adapter is fully charged. Low battery can affect performance.
  • Reduce the distance between the adapter and the connected Bluetooth device, and remove any obstacles that might cause interference.
• Short working range: Bluetooth range can be affected by physical obstructions (walls, furniture) and electromagnetic interference. Try to use the device in an open area with a clear line of sight between the adapter and the connected Bluetooth device.

8. 仕様

Technical details for the VR-robot Bluetooth 5.0 Audio Transmitter Receiver Adapter:

This image illustrates the compact size of the adapter, measuring approximately 1.73 x 1.73 x 0.47 inches, emphasizing its portability and small footprint.

This image demonstrates the effective working range of the Bluetooth 5.0 adapter, which is up to 33 feet (10 meters), showing it connecting a TV to a wireless speaker in a typical home environment.

9. メンテナンス

To maintain your VR-robot Bluetooth adapter in optimal condition:

• 柔らかく乾いた布でデバイスを拭いてください。研磨剤入りの洗剤や溶剤の使用は避けてください。
• デバイスは直射日光や極端な温度を避け、涼しく乾燥した場所に保管してください。
• When not in use for extended periods, ensure the device is fully charged before storage and recharge it periodically to preserve battery health.

10. 保証とサポート

VR-robot provides a 60-day return policy and a 12-month replacement guarantee for this product. Lifetime technical support is also available. If you have any questions or require assistance, please contact VR-robot customer service. Messages are typically responded to within 12 hours.