F3X-H81C0-T0-00. MY 20 Yamaha exclusive EcoXGear® Bluetooth® speakers, custom cup holder mounts and supporting hardware for FX WaveRunners. IP67 Waterproof / Shock resistant / Floating. 30W 4” woofer + separate tweeter for dynamic frequency response. 12-17 hours of playtime. Marine grade materials. EcoTalk button for easy activation of Siri & Google voice. EcoConnect paired out of the box for stereo listening; possible to de-pair and use independently. One-touch off - turn off one speaker, other goes off too. Bluetooth 4.2 streams wirelessly from up to 100 feet away. Includes custom mount for FX unit integrated installation