(Disclaimer: The Amazon links in this blog post are affiliate links, so I can make a few extra coins to help pay for a fraction of the cost to host this website. #CommissionsEarned)
Would one of these sound amplifiers work at a Major League ballpark to hear what the players talk about in the dugout?
Educational Insights Sonic Sleuth $24.99
- Works up to 300′ away
- Frequency controller blocks noise over 85 decibels
Sound Receiver WN-077 Spy Listening Device $29.48
- Eavesdrop on conversations discreetly up to 80 feet away
- Is there a frequency controller on this?
Spion Orbitor Electronic Listening Device $59.95
- Adjustable Frequency Controller reduces unwanted background sounds
- Built-in recorder stores 120 seconds of anything you hear
- Amplify sounds from hundreds of feet away
- You can clearly hear conversation-level sounds from a discreet distance of 300 feet!
$179.95
- Hear a conversation 100 yards away
- Increases sound by up to 40 decibels
- Output jack records sounds
- Omni-directional microphone w/windscreen
Nice things and they are pretty cheap!