In this guide · 5 sections
Key takeaways
- A wireless pitch calling system delivers the pitch call as audio to an earpiece, removing visible signs (and the sign-stealing problem) entirely.
- Two broad types: dedicated hardware kits (proprietary transmitter + receivers) and app-based systems that run on a phone with any Bluetooth headset.
- Hardware kits cost several hundred dollars upfront; app systems run on a phone you already own for a monthly fee with a free trial.
- What to evaluate: audio (not visual) calls, sub-second latency, offline reliability, pitch type + location (not just a number), and whether it logs pitch data.
- For youth, travel, select, and high-school teams, an app system usually wins on cost and flexibility while delivering the same core capability.
- MAVTRAX is the app-based option: phone + any $20 headset, spoken calls under a second, fully offline, with automatic pitch analytics — 14-day free trial, no card.
A wireless pitch calling system does one core job: it gets the pitch call from the dugout (or catcher) to a player's earpiece without anyone flashing a sign that the other team can read. No hand signals across the diamond, no wristband lookups, no stolen signs — just a spoken call, heard instantly, eyes never leaving the field.
The category spans a wide price range, from proprietary hardware kits that cost several hundred dollars to an app like MAVTRAX that runs on the phone in your pocket for $4.99 a month. This guide breaks down the types, what actually matters when you choose, and which fits which kind of program.
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The two types of wireless pitch calling system
1. Dedicated hardware kits. A proprietary button transmitter sends an encoded audio call to proprietary earpiece receivers. Purpose-built, single-function, and proven at the highest levels — but you buy and maintain the hardware, and you're locked to that brand's earpieces.
2. App-based systems. An app on the coach's phone is the transmitter; any Bluetooth headset is the receiver. You tap the pitch, the app speaks it to the catcher's earpiece. No proprietary hardware, much lower cost, and you get analytics because the app already knows every pitch you called.
Both put a spoken call in the player's ear. The difference is what you buy, what it costs, and how flexible it is.
What to look for (5 must-haves)
1. Audio, not a screen to read. If the player has to look at a display, you've reintroduced the visual break. The call must be heard, hands-free.
2. Under-a-second latency. A laggy call is a call you can't trust. Audio should be pre-loaded and fire instantly.
3. Works offline. Fields have dead zones. The calling path can't depend on signal — MAVTRAX pre-loads every clip so it always fires.
4. Pitch type AND location. Calling "pitch #2" off a card is crude. A real system calls the actual pitch and spot — and ideally remembers each pitcher's arsenal.
5. Pitch data. If the system already knows every call, it should hand you the analytics — pitch mix, locations, counts — for free.
Hardware kit vs. app: cost reality
| Hardware kit | App system (MAVTRAX) | |
|---|---|---|
| Upfront | Several hundred dollars | $0 — runs on your phone |
| Ongoing | More receivers per player | $4.99/mo · 14-day trial |
| Earpiece | Proprietary only | Any $20 Bluetooth headset |
| Analytics | Limited | Type + location + count |
| Replace a piece | Proprietary hardware | Another $20 headset |
For a self-funded youth or travel team, a full season of the app plus a couple of headsets costs less than a single hardware kit. Detailed comparison: MAVTRAX vs. PitchCom →
Which system fits your program?
- Pro / elite, budget no object, want dedicated hardware: a hardware kit is proven and polished.
- Youth, travel, select, high school: an app system delivers the same edge for a fraction of the cost, with flexible headsets and free analytics.
- Just want to try wireless calling first: start with a free app trial — zero cost, real game, then decide.
More: Electronic pitch calling explained · Coach-to-catcher communication devices · Best headsets
We're the team behind MAVTRAX — pitch-calling software used by baseball and softball teams from 9U travel ball up. We spend our days around dugouts, gear bags and tournament weekends. Picks are chosen on specs, durability for youth-sports abuse, real-world price, and owner feedback — not on who pays the highest commission. Full criteria on how we pick.