Halfdirect Original Wireless Mini Box Designer Bluetooth HD Speaker (Blue) HD Bluetooth 3.0 standard and 2.1+ (EDR) with hands-free calling, built-in diaphragm, ECHO / Noise Reduction. Built-in high quality HD Audio Codec, Support LINE IN function, Features built-in high capacity Li-Ion Rechargeable battery with USB Charger included. Support TF Card to play music, Simply insert your micro-SD Memory card and use speaker flawlessly with built in touch controls featured on the top of the HD super bass speaker. Wireless portable speaker in black connects with mobile phones, computers, tablets, iPod/ iPhone or any other Bluetooth device. Seamlessly stream and share music, movies, games, phone and conference calls anywhere. Two highly powerful acoustic drivers and ultra-small dome produce a wide audio spectrum. Up to 10 hours of power from internal rechargeable battery. High-Powered wireless speaker and Speaker phone. Listen in High Definition HD