Most listings name ABS and silicone as the material(s); some entries list ABS only while others list both ABS and silicone.

Many entries are described as fully waterproof and explicitly reference the IPX7 rating.

Some product descriptions call devices "whisper-quiet," and reviews describe discreet operation; however, not all listings provide specific noise or decibel measurements, so quietness may vary by model.

Several entries list a 1-year warranty and some mention a 10-year quality guarantee. Coverage and terms vary by product, so check the individual product page for full warranty details.