AudioMX Over-Ear Stereo Bluetooth Headphones with AptX Low Latency, Noise Isolation (Alloy Sliver) Enjoy gorgeously rich sound, made possible by leading apt-X audio technology: perfect clear highs, dynamic mid-range, thumping bass; noise isolation design excels at attenuating noise by passively blocking environmental sound; provides you an ideal listening experience Apt-X and Bluetooth CSR 4.0 allow 10 meter/33 feet range with full bandwidth transmission, no loss of audio performance; quick charge battery, up to 20 hours max play time per charge Snug and comfortable fit; adjustable headband maintains shape and is strong and secure; ultra-soft ear cushions deliver comfort for all-day-and-night use; folds up for easy carry Smart design, compact, lightweight; easy access to controls; built-in microphone for Skype, Face time and other online voice chat, connect via Bluetooth or Aux-in jack (Audio cord Included) Compatible with all Bluetooth devices, including Bluetooth enabled TVs and tablets, iPhone, iPod, iPad, Samsung Galaxy / Edge, Nexus, Android, HTC, LG, Nokia, Motorola, Windows Phone, and more