The yyk-q80 has no buttons. However, if you press where a button would be on any other device, you will feel a single, precise vibration. That vibration is the exact frequency of the last time you were truly happy and did not realize it.
rev. 0 — no longer in circulation
Prolonged pressing may cause: nostalgia, acute awareness of breathing, or the sudden smell of rain on asphalt from a summer that ended before you were born. yyk-q80 user manual
Do not turn your head. Not yet. Wait for the hum. The yyk-q80 has no buttons