Key attributes Industry-specific attributes battery Yes Other attributes built-in microphone Yes power source Battery number of loudspeaker enclosures 1 cabinet material Plastic display screen NO brand name Kasinuo model number: G2389 Product name portable Speaker Function LED BT TF USB FM TWS BT version BT V5.1 Horn 66mm*1 Playtime 2H Battery 3.7V 1200mah Packaging and delivery Selling Units: Single item Single package size: 16.5X9.5X17 cm Single gross weight: 0.520 kg Unique Design 60 Minutes Playing Time Portable Stereo Subwoofer Wireless Bt Small Mini Tire Shape Speaker