OTL Technologies HK1210
Hello Kitty Karaoke Microphone Wireless Speaker
Model: HK1210
Introduction
This manual provides essential information for the safe and effective use of your Hello Kitty Karaoke Microphone Wireless Speaker. Please read this manual thoroughly before operating the device and retain it for future reference.
Key Features
- 2-in-1 Functionality: Operates as both a Bluetooth microphone and a speaker.
- Wide Compatibility: Easily connects to iOS, Android devices, tablets, and TVs.
- Multi-function Control Panel: Buttons located under the microphone head allow for adjustment of volume, echo effects, and access to TF card reader, MP3 player, and voice changer functions.
- Rechargeable Battery: Built-in high-capacity Li-ion battery provides up to 5 hours of continuous use on a full charge.
- Portable Design: Lightweight and easy to carry for various entertainment settings.
- Integrated Speaker: Features a 5W speaker unit for clear and loud sound output.
- LED Light: Dazzling LED light enhances the karaoke experience.
Package Contents
Please check the package for the following items:
- Hello Kitty Karaoke Microphone Wireless Speaker
- USB Charging Cable
Product Overview

Figure 1: Front view of the Hello Kitty Karaoke Microphone, showing the microphone head, Hello Kitty speaker face, and control buttons.

Figure 2: Back view of the Hello Kitty Karaoke Microphone, showing the speaker grille.
Control Buttons and Ports
The microphone features several control buttons and ports for various functions:
- Power Button (ⓘ): Press and hold to turn on/off. Short press to switch modes (Bluetooth, TF Card, etc.).
- Volume Up / Next Track (+): Short press for next track. Long press to increase volume.
- Volume Down / Previous Track (-): Short press for previous track. Long press to decrease volume.
- Play/Pause Button (⏸): Press to play or pause music.
- Echo/Reverb Button (ⓔ): Short press to cycle through echo effects.
- Mode/Voice Changer Button (M): Short press to switch between different modes (Bluetooth, TF Card). Long press to activate voice changer effects.
Ports:
- USB Charging Port: For charging the microphone.
- TF Card Slot: For playing music directly from a TF (MicroSD) card.
Setup Guide
1. Charging the Microphone
Before first use, fully charge the microphone. A full charge typically takes 2-3 hours.
- Connect the supplied USB charging cable to the microphone's USB charging port.
- Connect the other end of the USB cable to a USB power adapter (not included) or a computer's USB port.
- The charging indicator light will illuminate during charging and turn off when fully charged.

Figure 3: Connecting the USB charging cable.
2. Powering On/Off
- To turn on, press and hold the Power button (ⓘ) until the indicator light illuminates and you hear a power-on prompt.
- To turn off, press and hold the Power button (ⓘ) again until the indicator light turns off and you hear a power-off prompt.
Operating Instructions
Bluetooth Connection
The microphone will automatically enter Bluetooth pairing mode upon powering on.
- Turn on the microphone. It will emit a sound indicating it's ready for pairing.
- Enable Bluetooth on your mobile device (smartphone, tablet, etc.).
- Search for Bluetooth devices and select "OTL-HK-MIC" or similar from the list.
- Once connected, you will hear a confirmation sound. You can now play music from your device through the microphone's speaker and sing along.
Playing Music from TF Card
- Insert a TF (MicroSD) card with MP3 music files into the TF card slot on the microphone.
- Press the Power button (ⓘ) briefly to switch to TF Card mode.
- The microphone will automatically start playing music from the card.
- Use the Play/Pause (⏸), Volume Up/Next Track (+), and Volume Down/Previous Track (-) buttons to control playback.
Using Microphone Functions
- Volume Adjustment: Long press the '+' button to increase volume, long press the '-' button to decrease volume.
- Echo Effect: Short press the Echo/Reverb button (ⓔ) to cycle through different echo levels.
- Voice Changer: Long press the Mode/Voice Changer button (M) to activate and cycle through various voice changing effects.
Care and Maintenance
- Clean the microphone with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Do not expose the microphone to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the microphone to strong impacts.
- Do not disassemble or attempt to repair the microphone yourself, as this will void the warranty.
- Store the microphone in a cool, dry place when not in use.
- Keep away from water and liquids to prevent damage to internal components.
Troubleshooting
| Problem | Solution |
|---|---|
| Microphone does not turn on. | Ensure the microphone is fully charged. Connect the USB charging cable and allow it to charge for at least 30 minutes before attempting to power on again. |
| No sound or low volume. | Check the volume level on both the microphone and your connected device. Ensure the microphone is properly connected via Bluetooth or TF card. |
| Cannot connect via Bluetooth. | Ensure Bluetooth is enabled on your device and the microphone is in pairing mode. Try restarting both the microphone and your device. Make sure no other devices are currently connected to the microphone. |
| Sound distortion or static. | Move closer to the connected device to reduce interference. Ensure the microphone is not too close to other electronic devices. Check for low battery. |
Specifications
| Model Number: | HK1210 |
| Brand: | OTL Technologies |
| Speaker Output: | 5 W |
| Speaker Unit: | 50 mm |
| Frequency Range: | 40 Hz - 18 K Hz |
| Echo Mode: | Echo sound effect |
| Power Supply: | Built-in Li-ion battery |
| Battery Capacity: | 1200 mAh |
| Battery Type: | Lithium Polymer |
| Continuous Use Time: | Up to 5 hours (with full charge) |
| Charging Time: | Approx. 2-3 hours |
| Connectivity: | Bluetooth, USB, TF Card |
| Product Dimensions (L x W x H): | 3.62 x 2.13 x 9.25 inches |
| Item Weight: | 12.7 ounces (360 Grams) |
| Color: | Pink |
| Recommended Age: | Over 3 years |
Important Safety Information
- This product is not a toy. Use under adult supervision.
- Do not expose the device to water, moisture, or extreme temperatures.
- Do not attempt to disassemble, repair, or modify the device.
- Keep the microphone away from heat sources and direct sunlight.
- Use only the provided USB cable for charging.
- Do not use the microphone if it is damaged.
- Dispose of batteries and electronic components responsibly according to local regulations.
- Not suitable for children under 3 years due to small parts.
- Prolonged exposure to high volume levels may cause hearing damage. Adjust volume to a safe level.
Warranty and Support
Warranty Information
This product is covered by a 24-month warranty from the date of purchase against manufacturing defects and material faults. The warranty does not cover damage caused by improper use, accidents, modifications, or unauthorized repairs.
To claim warranty service, please retain your proof of purchase (receipt or invoice) and contact the retailer where the product was purchased or the manufacturer's customer support.
Customer Support
For technical assistance, troubleshooting, or further inquiries, please visit the official OTL Technologies website or contact their customer support channels.
Website: www.otltechnologies.com
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