The portable Bluetooth speaker from Xiaomi with 40 watts of power contains two internal full-range speakers for stereo sound and a subwoofer for richer bass. With a full charge, it offers up to 5 hours of continuous music playback. Additionally, it has USB charging capability, so you can easily charge it with a power bank. With an IP67 protection rating, you can take the speaker with you to the beach, pool, or forest, as it has full protection against dust and can withstand water for 30 minutes at a depth of over 1 meter. Note that movement in the water creates increased pressure as if it were at a greater depth.