OSA K6

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OSA Lavalier Microphone System User Manual

Model: K6

Brand: OSA

Product Overview

The OSA Lavalier Microphone System (Model K6) is a versatile wireless audio solution designed for high-quality sound recording with Type-C enabled smartphones, including iPhone 15. This system features advanced noise reduction technology, long battery life, and a simple plug-and-play setup, making it ideal for vlogging, podcasting, interviews, live streaming, and professional video recording.

Its unique design includes a digital display for battery status and custom wind caps for enhanced audio clarity in various environments.

Package Contents

  • 1 x Charging Case
  • 2 x Lavalier Microphones (Transmitters)
  • 1 x Receiver (for USB Type-C Port)
  • 1 x Type-C Charging Cable
  • 2 x Windproof Caps (Dead Cats)
  • 1 x User Manual
Contents of the OSA Lavalier Microphone System package, including charging case, two microphones, receiver, charging cable, two wind caps, and user manual.
Figure 1: Included Product Accessories

Setup Guide

1. Initial Charging

Before first use, ensure both the charging case and the microphones are fully charged. Connect the provided Type-C charging cable to the charging case and a suitable power source. The digital display on the case will indicate the charging status. The microphones will charge automatically when placed inside the fully charged case.

OSA charging case with two microphones and receiver, showing battery life and charging indicators.
Figure 2: Charging Case and Components

Note on Charging Contacts: If you experience issues with microphones not charging, ensure the charging contacts on the bottom of the microphones are clean. Sometimes, residue from protective film can interfere with charging. Gently wipe the contacts with an alcohol wipe if necessary.

2. Connecting to Your Device (Plug-and-Play)

  1. Take out the microphones and receiver from the charging case.
  2. Plug the receiver into the Type-C port of your smartphone.
  3. The microphones and receiver will automatically pair. A green light on both the transmitter (microphone) and receiver indicates a successful connection.
  4. You can now start recording or live streaming.
Diagram showing the plug-and-play setup process for the OSA wireless microphone system with a smartphone.
Figure 3: Simple Plug-and-Play Connection
Video 1: Official product video demonstrating the OSA Lavalier Microphone for Phone.

3. Attaching Windproof Caps

For outdoor use or in windy conditions, attach the provided windproof caps (also known as "dead cats") to the microphones. These caps significantly reduce wind noise, ensuring clearer audio recordings.

OSA Lavalier Microphones with windproof caps attached, showing the compact design and digital display.
Figure 4: Microphones with Windproof Caps

Operating Instructions

1. Noise Reduction Technology

The OSA microphone system incorporates an intelligent active noise reduction chip and 80KHz stereo reception. This technology filters out ambient noise, providing crystal-clear audio recordings. The omnidirectional sound pickup ensures comprehensive sound capture.

Diagram illustrating the DSP noise reduction chip technology, showing sound waves before and after noise reduction.
Figure 5: DSP Noise Reduction Chip in action

2. Long-Range Transmission

The system supports 2.4GHz wireless transmission, offering a long range of up to 82 feet (25 meters). This allows for flexible recording scenarios, especially useful for outdoor content creation.

Image depicting the 82-foot long-range transmission capability of the OSA wireless microphone system in an open outdoor environment.
Figure 6: 82FT/25M Long-Range Transmission

3. Extended Battery Life

Each microphone provides approximately 8 hours of operating time on a single charge. The charging case, when fully charged, can recharge each microphone up to 5 times, offering a total of up to 36 hours of continuous use. The digital display on the charging case shows the remaining battery percentage.

Detailed graphic showing the 36-hour battery life and charging capabilities of the OSA microphone system.
Figure 7: 36H Working Time & 70ft Long Range Transmission

The receiver also supports charging your mobile device via its Type-C interface while in use, ensuring uninterrupted recording sessions.

Image showing the Type-C charging design of the receiver, allowing simultaneous phone charging during use.
Figure 8: Type C Charging Design

Maintenance

1. Cleaning

Regularly clean the charging contacts on the microphones and inside the charging case to ensure optimal charging performance. Use a dry, soft cloth. For stubborn residue, a cotton swab lightly dampened with isopropyl alcohol can be used, ensuring the device is powered off and completely dry before use.

2. Storage

Store the microphones and receiver in their charging case when not in use to protect them and keep them charged. The windproof caps are designed to snap onto the microphones. However, the charging case does not have dedicated compartments for the windproof caps when they are attached to the microphones. It is recommended to remove the windproof caps before placing the microphones back into the charging case to prevent damage to the caps or the case, or to store the caps separately.

Troubleshooting

ProblemPossible CauseSolution
No sound from microphone
  • Microphone/Receiver not connected.
  • Incorrect app used (for Samsung/Google/OnePlus).
  • OTG function not enabled (for OPPO/VIVO).
  • Check if both MIC and RX indicators are solid green (not blinking).
  • For Samsung phones: Use other apps instead of the built-in camera app to pick up sound.
  • For Google and OnePlus phones: Some models may not be compatible.
  • For OPPO and VIVO phones: Ensure OTG (On-The-Go) function is turned on in settings.
Microphones not charging properly
  • Residue on charging contacts.
  • Charging cable or power source issue.
  • Clean charging contacts on microphones and inside the case with an alcohol wipe.
  • Try a different Type-C charging cable and power adapter.
  • Ensure microphones are correctly seated in the charging case.

Specifications

  • Model Name: K6
  • Brand: OSA
  • Connectivity Technology: 2.4GHz Wireless (Note: Product specifications may list Bluetooth, but primary audio transmission is via 2.4GHz wireless for plug-and-play functionality.)
  • Connector Type: USB Type-C
  • Compatible Devices: Smartphone (Type-C interface, including iPhone 15)
  • Microphone Form Factor: Lavalier
  • Polar Pattern: Omnidirectional
  • Signal-to-Noise Ratio: 71 dB
  • Power Source: Battery Powered
  • Item Weight: 6.4 ounces
  • Product Dimensions: 4.13 x 1.3 x 5.71 inches
  • Working Time (per mic): Approx. 8 hours
  • Total Working Time (with case): Up to 36 hours
  • Transmission Range: Up to 82 feet (25 meters)
  • Special Feature: Wireless, Active Noise Reduction, Digital Display

Warranty and Support

Specific warranty details are not provided in the product information. Please refer to the retailer or manufacturer's official website for warranty information and customer support contact details.

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