Fitted with two 52mm drivers (other speakers always use 44mm drivers)and passive radiators that can handle wide range of music.</br>With DSP technology EQ settings allow you to optimize the sound quality for the ideal indoor and outdoor experience.</br>IPX5 rated. This outdoor speaker is shockproof and waterproof. Perfect for outdoor activities.</br>Built-in 5200mAh rechargeable battery allows up to 16 hours playing time. Due to the backup battery you can charge the mobile phones when in urgent needed.</br>Built-in mic for hands-free calling when you are on outdoor activities.</br></br>Product Description</br></br><b>Sound Performance</b><br>Two 10W total acoustic drivers delivers high definition sound and clarity. The passive radiator brings you strong bass without distortion even at high volume.<br><br><b>DSP Technology</b><br>With DSP technology processed 2 equalizer modes:<br>(1)Indoor mode provides a well-balanced crispy sound for any music style.<br>(2)Outdoor mode enhances high pitch and works great for party.<br><br><b>Tough and Durable</b><br>IPX5 waterproof level protects the speaker from splashing water. A great companion for showers baths swimming pools??etc. (Please don't submerged in water.)<br><br><b>5200mAh Powerbank</b><br>Built-in 5200mAh rech