VicTec Sweat-proof Sport Wireless Bluetooth V4.0 Stereo Headset Earphone Headphone with Mic - Black Connect to 2 mobile phones simultaneously. Say "Yes" or "No" to pick or reject call, add convenience to your life 30 feet (10m) wireless operating distance, with in-ear design and lightweight and comfortable ear buds Practicable design with adjust volume, skip tracks, power, and phone functions Lightweight and portable, just enjoy music without the hassle of connecting with wire Fashionable and unique style; up to 5 hours of playing time