Findway&reg;[New Portable Bluetooth Speaker]Super Bass Resonator, Powerful and High-Def Sound Wireless Rechargeable Hands Free Speakerphone Microphone Bluetooth 4.0 Compatible with Bluetooth Enabled Media Device for Cell Phones iPhone 6, 6 Plus, 5S, 5C, 5, 4S, 4, iPad Air, iPad Mini,Ipod Touch, 5, 4, 3, 2, Retina Mini 2, Samsung Galaxy S5, S4, S3, Note 2, 3, Tab 3, Sony Xperia 3, 2, 1and more Smartphones and Tablets Bluetooth protocol: version 2.1+EDR. Bluetooth range: 10meters. Input sensitivity: 300MV. Frequency range:80Hz~20KHz Signal-to-noise ratio:&gt;76dB. Talking time: up to 5 hours Charging time: about 2 hours. Power supply: USB Power