Features: 360 high-fidelity surround sound, suitable for indoor and outdoor use. Bluetooth-compatible multi-function audios: Bluetooth-compatible playback, insert memory card playback, USB playback, AUX-audio playback. One-click hands-free answering: After connecting with a Bluetooth-enabled mobile phone, no matter in any playback mode, the speaker can answer calls hands-free on the speaker when there is an incoming call. Classic design, knob adjustment. Exquisite design, retro beautiful construction, perfect aesthetics. Unique speaker enclosures with classic colors and a retro look are a must-have interior for any room. Lightweight and exquisite, compact and portable, leather handle design, durable and easy to carry outdoors. . Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Playing time: 2 hours Speaker: 3W Frequency response: 50HZ-20KHZ Battery: 3.7V 400MAH Signal-to-noise ratio: Z90DB Receiving distance: 10 meters Net weight per unit: 190G Charging time: 2-3 hours Product size: 70MM high, 110MM wide, 50MM thick Supported functions: BT/U disk/TF card/audios output