POWERFUL BASS EFFECTS AND CLEAR CALLS: With deep bass and clear highs, it produces a surprisingly loud Bluetooth speaker. With its built in microphone, you can take calls remotely and clearly. Uses 3W output. EXCELLENT LISTENING EXPERIENCE: When you connect 2 F012 wireless Bluetooth speakers through 1 device at the same time, the double shock surround sound can let you enjoy the stereo sound enjoyment in 360. IP67 WATERPROOF: Dust and water resistant and scratch resistant, high quality silicone surface. You can enjoy beautiful music while bathing in the bathroom or having an outdoor pool party with friends. WIDELY USED: You can take calls conveniently with this small Bluetooth speaker. It's easy to take with you, perfect for parties, travel, hiking, camping and outdoor activities. HIGH COMPATIBILITY: Advanced Bluetooth 5.0 wireless technology, forward/backward compatible with all Bluetooth enabled media player devices such as smartphones, tablets, laptops, desktops, etc. Support FM radio function.Frequency Response Range: 60Hz-15KHz. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.