HX380 5W Commercial Grade Submersible IPX-7 Handheld VHF Radio with LMR Channels. Building on the success of the HX370S, the HX380 5W Commercial Grade handheld VHF has been upgraded with a 1600 mAh Lithium Ion battery, providing more than 13 hours of use on a single charge (5/5/90 duty cycle). The HX380 had been engineered for unparalleled reliability and exceeds the IPX7 waterproof standard for submersion, 3.3 feet or 1 meter for up to 30 minutes.. The HX380 combines multiple features for a wid