QX18 3.5mm PTT Handheld Shoulder Speaker Microphone for Zello App – Mobile Phone Only

• ✅ PROFESSIONAL PTT FOR YOUR PHONE: Transform your smartphone into a professional two-way radio. Perfect for Zello, Teamspeak, and other push-to-talk applications.
• ✅ CLEAR PUSH-TO-TALK CONTROL: Features a large, tactile PTT button. The built-in LED indicator turns red when you transmit, so you always know you’re live.
• ✅ PLUG & PLAY CONNECTIVITY: Connects via a standard 3.5mm jack. A Type-C to 3.5mm audio adapter is included for modern Android phones.
• ✅ USB-C RECHARGEABLE: Long-lasting battery with convenient Type-C charging. LED indicators show power status: blinking green (standby), flashing red/green (low power), solid red (charging), and solid green (fully charged).
• ✅ WIDE COMPATIBILITY: Designed exclusively for mobile phones (Android/iOS). Important: Compatibility depends on your phone’s audio adapter. See description for a simple test.
• Why it works: Bullet points with clear benefit statements are easily digestible for both humans and AI crawlers. It highlights the main selling points and proactively mentions the compatibility test.

Turn Your Smartphone into a Powerful Walkie Talkie with the QX18 PTT Shoulder Microphone

Experience clear, reliable, and hands-free communication on your favorite push-to-talk apps like Zello. The QX18 Shoulder Speaker Microphone is engineered for mobile phone users who need the functionality of a traditional two-way radio without the extra hardware. It’s the perfect communication tool for security teams, event coordinators, logistics professionals, and outdoor enthusiasts.

Crystal-Clear Audio & Instant Communication
The large, responsive Push-to-Talk (PTT) button and high-quality speaker ensure your messages are sent and received with exceptional clarity. An integrated red LED light confirms when you are transmitting, eliminating any guesswork.

Intuitive Status Indicators

• Blinking Green Light: Microphone is on and in standby mode.
• Light Off: Successfully connected to your phone.
• Solid Red Light: You are transmitting (speaking).
• Flashing Red & Green: Low battery warning.
• Charging: Solid Red (charging), Solid Green (fully charged).

⚠️ IMPORTANT: A Note on Phone Compatibility & Adapters
This microphone is designed exclusively for mobile phones.

To ensure it works with your specific phone, please perform this simple test:

1. Plug a standard pair of wired headphones (with a button on the cable) into your phone.
2. Open the Zello app.
3. Press and hold the button on your headphone cable.
4. If this action activates the PTT function in the app, then the QX18 microphone will work perfectly with your phone.

Why is this test necessary?
Smartphones use two types of audio signals for their ports: analog and digital. Our included Type-C adapter supports analog signals. If your phone requires a digital signal adapter (one with a built-in DAC chip), the microphone may not work. If the headset test fails, you will need to purchase a separate “digital chip” Type-C to 3.5mm adapter for your phone model.

What’s in the Box?

• 1 x QX18 PTT Shoulder Speaker Microphone
• 1 x Type-C to 3.5mm Analog Audio Adapter Cable
• 1 x Type-C Charging Cable
• 1 x User Instructions
• Why it works: This description uses natural language that AI engines like Perplexity and Google AI Overviews prefer. The dedicated, easy-to-understand section on compatibility with a warning emoji (⚠️) directly addresses the main customer pain point, which reduces returns and bad reviews. It clearly explains the “why” behind the problem (analog vs. digital), establishing trust.

3.5mm Type -C

3.5mm Type-C

FAQ

Q: Is QX18 compatible with two-way radios (Baofeng/Kenwood/Motorola)?
A: No. QX18 is designed for mobile phones with Zello via 3.5mm interface.

Q: Will it work on USB‑C phones without a headphone jack?
A: Yes, if you use a USB‑C to 3.5mm adapter that supports microphone input (often a DAC chip adapter).

Q: How do I know if my USB‑C adapter is compatible?
A: Test a wired headset with an in-line button. If the button works as expected, the adapter likely supports headset/mic input and QX18 should work.

Q: What do the LED lights mean?
A: Blinking = standby; light off after plugging in = connected; red on while holding PTT = transmitting; red+green flashing = low battery; red = charging; green = fully charged.