What is the difference between PACKTALK CUSTOM and PACKTALK EDGE? Unlike the top-of-the-line EDGE, PACKTALK CUSTOM comes only with a basic subset of essential features, which can be upgraded and customized with additional features such as Bluetooth Intercom, Natural Voice operation, music sharing, second device connection, Eco-Mode, and others, by subscribing to monthly or yearly packages. Furthermore, Packtalk Custom replaces the EDGE's magnetic Air Mount, high-end JBL sound system, and 3-year extended warranty, with a more standard clickable cradle, 40mm HD speakers, and a 2-year warranty. In addition, charging while riding is possible only on PACKTALK EDGE. What is the difference between PACKTALK CUSTOM and PACKTALK NEO? Unlike the more expensive PACKTALK Neo, PACKTALK CUSTOM comes only with a basic subset of essential features and replaces NEO's JBL speakers and sound system with a less expensive set of Cardo's standard 40mm HD speakers. Unlike the NEO, PACKTALK Custom can be upgraded and customized with additional features such as Bluetooth Intercom, Natural Voice operation, music sharing, second device connection, Eco-Mode, and others, by subscribing to monthly or yearly packages. When fully upgraded, the Packtalk Custom is similar in functionality to the NEO, minus the JBL sound system and speakers. What is the difference between PACKTALK CUSTOM and FREECOM 4X? "FREECOM 4X is a fully featured Bluetooth communicator, whereas PACKTALK CUSTOM is a Mesh communicator with a basic subset of essential features. PACKTALK Custom can be upgraded and customized with additional features such as Bluetooth Intercom, Natural Voice operation, music sharing, second device connection, Eco-Mode, and others, by subscribing to monthly or yearly packages. Unlike FREECOM 4X which offers Sound by JBL, PACKTALK CUSTOM comes with Cardo's standard 40mm HD speakers."