Kisonli S21 Mini bluetooth speaker

Compact portable wireless Bluetooth speaker featuring Bluetooth v5.3 technology for low latency and stable connectivity up to 10 meters. Delivers 5W RMS sound output with 360-degree surround audio capability. Includes a built-in 500mAh rechargeable lithium battery providing 3 to 4 hours of playback, along with support for TF/MicroSD card, USB flash drive audio, FM radio, and TWS stereo pairing.