Upgrade Mini Speaker Plug and Play Portable Speaker Amplifier simply connect the music amplifier to your phone via the 3.5MM/TypeC audio jack, with no complex setup required. 5X Sound Amplification Wireless Bluetooth Speaker for Outdoor boosts your sound with five times amplification, delivering immersive and crystalclear audio. Transparent ABS Shell Crafted with a transparent ABS shell, Confideint Portable 5X Speaker Amplifier Plug & Play for Music/Calls not only looks sleek but also enhances durability, making it suitable for both home and outdoor use. Long Battery Life MultiDevice Pairing Speaker offers builtin 250 mAh lithium battery for standby and playback, enabling flexible use across devices. Use scenarios At home or in the office connect to a phone or tablet via the 3.5MM/TypeC jack to enhance music playback or improve call audio without complex setup. Outdoors during picnics, camping, or backyard gatherings use Bluetooth to stream music from a phone or tablet and enjoy amplified, clearer sound. While traveling or commuting take advantage of multi device pairing to switch between sources and maintain hands calls or music playback with improved audio clarity.