Panasonic WX-ST400

Overview

The Panasonic WX-ST400 is a DECT wireless bodypack transmitter designed for clear voice reinforcement in classrooms, conference rooms, and training environments. Operating in the 1.9 GHz spectrum, it avoids the interference common in crowded UHF bands, ensuring a stable and reliable audio signal. The included cardioid electret condenser lavalier microphone captures speech with a frequency response from 100 Hz to 15 kHz, preserving natural vocal tones for both in-room listeners and remote participants.

Key features

• Cardioid lavalier microphone reduces ambient noise and feedback, focusing on clear speech capture.
• DECT 1.9 GHz wireless transmission minimizes interference for consistent audio quality.
• Automatic pairing with Panasonic WX-SR series receivers streamlines setup and eliminates frequency coordination hassles.
• Powered by a single AA battery, providing approximately six to eight hours of continuous use with quick, tool-free battery replacement.
• 3.5 mm input allows integration of external audio sources like laptops or mobile phones for blended presentations.
• Internal antenna and single LED indicators offer a compact design with easy monitoring of power and link status.
• Durable housing built to withstand frequent handling and transport between locations.

Key specs

• Wireless frequency: DECT 1.9 GHz band
• Microphone type: Cardioid electret condenser lavalier
• Frequency response: 100 Hz to 15 kHz
• Power source: 1 x AA battery
• Battery life: Approximately 6 to 8 hours
• Audio input: 3.5 mm jack for external devices
• Indicators: Single LED for power and link status

Connectivity and compatibility

The WX-ST400 pairs seamlessly with Panasonic WX-SR series receivers, making it a straightforward choice for existing Panasonic wireless setups. The 3.5 mm input expands its versatility by allowing presenters to add audio from laptops, phones, or media players without extra adapters or mixers. This makes it well suited for hybrid learning environments, corporate training sessions, and live demonstrations where mixed audio sources are common.

Performance and reliability

By operating in the 1.9 GHz DECT band, the transmitter avoids the crowded UHF spectrum, reducing dropouts and interference that can disrupt presentations. The cardioid microphone’s focused pickup pattern helps maintain speech clarity even in noisy rooms. Its robust build and long battery life support extended use throughout the day, ensuring dependable performance for educators and event coordinators who need consistent voice reinforcement.

Ideal uses and environments

This wireless transmitter is a strong choice for educators, corporate trainers, and event professionals who require clear, reliable audio in medium-sized rooms. It fits well in settings where quick setup and minimal technical adjustments are important, such as classrooms, seminar rooms, and training facilities. The ability to blend external audio sources also makes it valuable for multimedia presentations and hybrid events.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

Learn more

Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

Learn more