Bluetooth Speaker Wireless Portable Outdoor Waterproof Mobile Phone Smart Speaker

Product information: Connection method: Bluetooth connection Interface type USB Frequency response range: 100HZ-10KHZ Output power: 5W*2 Signal to noise ratio: ≥70db Power supply mode: built-in lithium battery Channel: 2 Play time: 18 hours Expansion storage: 32GB Bluetooth protocol: 4.2 Number of speakers: 2 Effective distance: 10 meters Operation mode: button Applicable people: general Play format: MP3, WMA, WAV, FLC Shell material: plastic Support format: TF card Speaker adjustment method: