Fineblue&reg; Universal Wireless Stereo [Voice+Music] Bluetooth Headset For iPhone Smart Phone (US Seller - 3-5 Days Delivery Guaranteed) Dual-Mode Bluetooth Headset - convertible design for listening to calls in mono as well as listening to music in stereo as headphones Universally compatible to all bluetooth enabled devices such as mobile phones, iPhone, android phone, watch phone, phablet, PS3, PDA, and so on. It can connect to two smart phones and serve for them simultaneously. Minimum abrasion for long time using is guaranteed. Latest ergonomically designed earplugs easy with a solid and comfortable (and even without earhook than the General with firm) Latest Bluetooth version V3.0 EDR matching speed and noise reduction and power saving technology. Also it can be compatible with V1.1, V1.0, V1.2, V2.0.