Key Features1) For MP3/Mpeg/CD/TV player2) Enjoy high fidelity wireless audio with your Bluetooth stereo headphone3) Portable slim design 4) With black and white colors. Product Specifications1) Bluetooth Specification Version 1.2 Class 2 (10m coverage)2) Supports Bluetooth A2DP Profile3) Music Playing Time: Up to 5 hours4) Standby Time: Up to 150 hours5) Nominal Charging Time: Within 3 hours6) Interface: 3.5mm stereo audio plug, mini USB charging port7) Sensitivity: <0.1% BER at -80dBm8) RF Output Power: -6dBm to 4dBm9) Power consumption: 30mAh10) Battery: 3.7V 200mA rechargeable Li-Polymer11) Power: Input AC 100-240V, Output DC 5V 500mA-1A