1. **Product Description:**
   The K9 Bluetooth Microphone is a versatile wireless microphone designed for a wide range of applications, including karaoke, public speaking, interviews, recording, and more. It utilizes Bluetooth technology for seamless connectivity with compatible devices and offers high-quality audio performance in a compact and user-friendly design.

2. **Key Features:**
   - Bluetooth 5.0 connectivity for stable and wireless operation.
   - High-quality condenser microphone for clear and crisp sound capture.
   - Rechargeable lithium-ion battery for extended usage.
   - Multiple audio modes: karaoke, interview, recording, and more.
   - Adjustable echo and volume control for customizable audio output.
   - Durable and portable design for on-the-go use.
   - Compatible with smartphones, tablets, laptops, and other Bluetooth-enabled devices.
   - LED indicators for battery status and connectivity.
   - Anti-interference technology for uninterrupted audio transmission.

3. **Technical Specifications:**
   - Microphone Type: Condenser
   - Bluetooth Version: 5.0
   - Frequency Response: 60Hz - 15kHz
   - Sensitivity: -45dB±3dB
   - Maximum SPL: 120dB
   - Battery Capacity: [50mAh-100mAh ]
   
4. **Package Contents:**
   - K9 Bluetooth Microphone
   - USB Charging Cable
   - Receiver

5. **User Interface:**
   - Power On/Off Button
   - Bluetooth Pairing Button
   - Echo Control Knob
   - Volume Control Knob
   - LED Indicator Lights

6. **Compatibility:**
   - The K9 Bluetooth Microphone is compatible with most Bluetooth-enabled devices, including smartphones, tablets, laptops, and smart TVs.

7. **Safety and Compliance:**
   - The product complies with relevant safety and regulatory standards.
   - Ensure that the product is used in accordance with local laws and regulations regarding wireless transmission.

8. **Maintenance:**
   - Clean the microphone with a soft, damp cloth.
   - Avoid exposing the microphone to extreme temperatures or moisture.
   - Keep the microphone away from strong magnetic fields.
   - Store the microphone in a dry and cool place when not in use.

9. **Warranty:**
   - The K9 Bluetooth Microphone comes with a 30 days warranty for manufacturing defects and workmanship issues.

10. **Additional Notes:**
    - The product specifications and features may be subject to change without prior notice for product improvement.

Please note that the above specifications are for reference purposes, and the actual product may have variations or updates. Always refer to the user manual provided with the product for detailed instructions and guidelines.