Description: The speaker is equipped with a powerful suction cup base, which can be directly fixed on any smooth surface With Bluetooth, level 4 waterproof, bathroom essentials, call function, equipped with 13-pin speaker Built-in 400 mAh battery, built-in lithium battery, long battery life, wireless and wired two ways, fully compatible with Bluetooth function devices, Bluetooth 4.1 chip optimization Ultra-long-distance reception, perfect sound quality, original 360-degree surround sound quality One-key hands-free call, convenient and quick Specification: Size:3.27x1.77 inch Connection method: Bluetooth connection Interface type: USB Battery capacity: 300MA Frequency response range: 60Hz-15KHz Output power: 4R3W Signal to noise ratio: ≥75dB Power supply mode: built-in lithium battery Play time: 2-3 hours Package Includes: 1x bluetooth speaker 1x manual 1x charge cable Note: This audio packaging is divided into crystal packaging box and color packaging box. There is no difference between the products, please confirm before placing the order.