COMFORT & SECURE FIT DESIGN : The uniquely designed ear hooks fit your ears snug. Neckband design prevents troublesome wires from tangling during your workout. Premium soft smooth silicone gel surface Reduce the skin friction. | NOISE ISOLATING: CVC noise cancellation 6.0 technology reduces outside noises, the integrated microphone lets you chat without external noise or other interference. | LASTEST BLUETOOTH 4.1 TECHNOLOGY: Easy and fast pairing with smartphones, tablets and other Bluetooth enabled music devices; more efficient energy connection so you can listen to music for up to 7 hours. | SIGNAL STRENGTH: Ceramic antenna improves signal strength and eliminates intermittent connections; inline microphone and controls let you take full control of your music list; answer phone calls without reaching your phone. | VOICE PROMPT: Voice Prompt function enables you know the using status right now; Support automatically reporting in-coming phone number, you will never miss a call. Support iOS battery monitoring.