feature: This portable Bluetooth speaker combines high-end stereo with portability, allowing you to enjoy music wirelessly anytime, anywhere. The Bluetooth connection allows you to wirelessly play and control music through Bluetooth devices, and to answer calls directly through the speaker hands-free. Bluetooth audio sound effect, perfect sound quality and bass effect. Built-in lithium battery, enjoy wireless music anytime, anywhere. With 3.5m audio input interface, support TF card, support USB interfaceSupport Bluetooth hands-free function, convenient for answering callsSupport AUX audio input, suitable for telephone, computer, mp3 and other audio equipment. Two-way control operation, simple and convenient operationCompatible with any Bluetooth-enabled deviceBluetooth music control function, colorful lights follow the music Specification: Bluetooth: V2. 1Wiring mode: 3.5 standard tone inputRated impedance: 4. 0hmPower supply: DC 5V 1000mASensitivity: 110dBSize: 101*100*94mm (length*width*height) TF card music playback: support MP3/wav/wma/flac/ape, etc. Play time: 10H at the default volume of RougeCharger: Micro USBOutput power: 5WFrequency response: 150Hz-18kHzSignal to noise ratio :