"The DS18 HYDRO MP4TP 4"" Marine Water-Resistant Wakeboard Tower Speakers brings a truly amazing upgrade on the durability of boat tower speakers. The pods have a completely redesigned clamping system made for rough use. These pods can mount on any vehicle but best shine on smaller vehicles that see a lot of vibration. The light weight of the pod and speaker with the updated clamping system will ensure long life and the utmost stability that gives larger speakers issues with frequent use in marine settings. These pods pump 50W RMS power per speaker with 150W max power. For crystal clear and loud pods for vehicles with limited space, these are the go-to boat speaker pods for you. 2-pack. Mfrs. 2-year warranty. 4"", 2-way coaxial speakers for clear, loud sound without sacrificing space Redesigned clamping system Lightweight, ultra-durable design to withstand hard conditions Water-resistant protection"