The Joyo BSK-150 Multifunctional 150W Battery Powered Bluetooth Live Streaming Acoustic Amplifier boasts JOYO's most updated core acoustic technique, with spacious sound field, clear tone, high resolution and detailed sound. BSK-150 multifunctional live streaming amp boasts JOYO's most updated core acoustic technique, with spacious sound field, clear tone, high resolution and detailed sound. It supports recording, ensuring the signal intact during transmission, facilitating outdoor performance in noisy environments. 3 Channels with independent control respectively, you can control the drum machine, LOOPER, PITCH CORRECTION and HARMONY EFFECTS via the attached Wireless Footswitch. BSK-150 is ideal for outdoor performance and playing guitar and singing simultaneously indoors during live streaming. It's highly versatile, delivering fabulous tone.