Review on KEDSUM Battery Aquarium Air Pump: Ultra-Quiet Rechargeable Fish Aerator with Dual Outlets - Ideal for Fish Tanks, Outdoor Fishing, Fish Transportation, and Power Outages by Wayne Martin

I bought this back in June to replace my previous air pump. Maybe it was a bit quieter then? but 6 months in, it has this incredibly annoying habit of going in and out in loudness no matter how much cushioning i put around it. The loudness isn't even steady either. it gets louder for a few seconds before going back to be a bit softer.I would return this noisy thing if I could, It works but the amount is noise is getting more and more unbearable.