K12 Wireless Karaoke Speaker

Product Overview

The K12 is a high-performance, portable wireless karaoke speaker with a built-in rechargeable battery. It offers versatile playback options, including wireless Bluetooth, TF card, and USB drive, along with an AUX interface. The speaker is designed for karaoke use, featuring microphone connectivity and controls for volume and sound effects.

Key Specifications:

• Model: K12
• Output Power: 6W
• Charging Voltage: DC5V
• Power Mode: DC Charging & Built-in Battery
• Input Signal: 42DB

Speaker Controls and Functions

The K12 speaker features several buttons for operation:

• Button 1: Short press to decrease volume. Long press for the previous track.
• Button 2: Switches playback modes (Wireless/TF card/USB).
• Button 3: Short press to increase volume. Long press for the next track.
• Button 4: Short press to cycle through LED lighting effects.
• Button 5: Long press for 3 seconds to power the device on/off. Short press for play/pause. Double-click to connect/disconnect Bluetooth.
• Button 6: Short press to mute/unmute the speaker.

Ports and Slots:

• TF Card Slot: Insert MP3 audio files to automatically switch to TF mode.
• AUX Interface: For wired audio input.
• USB Port: Insert MP3 audio files to automatically switch to USB mode.
• Charging Port: Type-C 5V charging interface.
• Light Indicator (17): Blue flashing when not connected, solid blue when connected, red when charging, red off when fully charged.

Microphone Functions

The K12 supports microphone input for karaoke. The microphone has its own controls:

• Microphone Button 1: Long press to power on/off. Click to play/pause.
• Microphone Button 2 (+): Click to increase microphone volume. Press and hold to play the previous song.
• Microphone Button 3 (-): Click to decrease microphone volume. Press and hold to hold a song.
• Microphone Button 4: Click to switch microphone mode or change sound. Press and hold to turn the microphone on/off. Double-click to cancel the original sound.

Microphone Indicators:

• Indicator (5): Blue flashing when not connected, solid blue when connected successfully, red when charging, red off when fully charged.
• Charging Port (6): Type-C, 5V charging port.

Microphone Sound Features:

• Short press to increase microphone volume.
• Double-click to increase reverb volume.
• Short press to decrease microphone volume.
• Double-click to decrease reverb volume.
• Short press to cancel original sound on/off.
• Long press to switch to magic sound effects.

Troubleshooting Common Issues

• No Indicator Light: Ensure sufficient power or charge using a 5V/1A adapter for 3-4 hours.
• No Microphone Sound: Check if the device is powered on, the correct mode is selected, and the volume is adjusted properly.
• No Reverb: Ensure the reverb switch is turned on.
• Microphone Noise: May be due to ambient noise, signal interference, or proximity to the speaker. Adjust microphone direction.
• Wireless Playback Interruption: Caused by long distance or obstacles between the phone and speaker. Move closer and remove obstacles.
• Wireless Connection Failure: Check distance, obstacles, or if connected to another device. Move closer, disconnect other devices.
• Charging Issues: Verify the charger is working and the red charging indicator light is on.

Warranty Information

The product is covered by a 12-month warranty for functional issues. Damage caused by human factors, drops, or scratches is not covered without a valid warranty card and proof of purchase.

FCC Statement

This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (1) it may not cause harmful interference, and (2) it must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, providing reasonable protection against harmful interference in a residential installation. Modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. The device meets general RF exposure requirements and must not be co-located or operated with any other antenna or transmitter.