Product code: SUPER hot RARE HEINEKEN SPEAKER CRATE PROMO
Very rare item. No other on ebay etc. Someone gave me this Heinkeken speaker crate. It claims to be a "near field audio amplifier". You basically hot play some audio on your phone and then place it on top of the box, with the phone speaker over the music note symbol. It actually works surprisingly well. Could actually be useful for conference calls if your phone doesn't have a reasonable speaker. At first I thought it was just a microphone, but it wouldn't actually respond to any audio at all, except my phone. So it turns out it doesn't use a microphone, it actually amplifies magnetic fields detected by those 2 coils. Not just music of course, it can also detect mains wiring in walls and other magnetic fields  The USB port is just for charging. comes with USB cord. No instructions other than what's on the box. There are some YouTube videos on this incredibly rare item. A1.
Very rare item. No other on ebay etc. Someone gave me this Heinkeken speaker crate. It claims to be a "near field audio amplifier". You basically hot play some audio on your phone and then place it on top of the box, with the phone speaker over the music note symbol. It actually works surprisingly well. Could actually be useful for conference calls if your phone doesn't have a reasonable speaker. At first I thought it was just a microphone, but it wouldn't actually respond to any audio at all, except my phone. So it turns out it doesn't use a microphone, it actually amplifies magnetic fields detected by those 2 coils. Not just music of course, it can also detect mains wiring in walls and other magnetic fields  The USB port is just for charging. comes with USB cord. No instructions other than what's on the box. There are some YouTube videos on this incredibly rare item. A1.