I kept the old model 8 years is the battery that logically released but I was delighted. It seems to take the logical next, Motorola retained the highly effective ergonomics (opening triggers the headset and it is forgotten once asked) and made it evolve into the "plug and play" is opens the headset and a voice guides you through the pairing (very simple). For the following openings, the same voice confirms that the headset is connected. As for the quality of communication, it has improved, especially with better noise management and of the breath. Best of all: it can connect simultaneously with 2 devices!