Motorola TLKR-T40 walkie talkie is license free and includes key features such as LCD display, 8 channels and up to 4 km range - AliExpress
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2/4 PCS ABBREE AI-9R Floating Walkie Talkie IP67 Waterproof Walkie-talkies for Motorola Fishing Kayak Skiing Portable Radio - AliExpress