Speaker with built-in microphone and Bluetooth 5.0, capable of approximately 8 hours of continuous playback. ☆Rare, not-for-sale item☆ - Brand: kipling - Color: Black - Microphone Function: Built-in microphone - Bluetooth Version: 5.0 - Battery Capacity: 1200mAh - Continuous Playback Time: Approximately 8 hours - Size: Approximately 8.5cm x 8.5cm x 4.5cm - Weight: Approximately 180g Thank you for viewing. Although I have never used it, I purchased it about two years ago.