My old SD9HD died with a leaking battery. Motorola made me quite laugh when they told me they want 16'000 yen for repair cost ( with testing ). When I bought it it was 14'000 yen; still a rip off here in Japan. Now it's new 16'000. Don't know what they are thinking. At they should be honest and tell me: sorry, no repair; please buy a new one. But I kind of liked it, good sound, easy to put on the head and the power connector was a micro USB; easy to recharge via iPhone charger or regular USB port. A colleague has a Sony headset; I kind of liked it with respect to sound and design; very similar to SD9 but lighter. Until I saw the power connector: Sony-style specific; would need to carry a dedicated charger with me all the time. Dislike that. What other headset you guys have positive experience with ? Charging via USB is kind of k.o. criteria.