Small portable PA system designed for use in the field without the possibility of mains power with a 3" speaker. Built-in Li-ion battery pack 2000mAh 3.7V (charging time: 3h, battery life at medium volume: 9h). It has a built-in USB / microSD / MP3 player / recorder and FM tuner. The system comes with an electret headphone microphone (1m cable), USB-micro charging cable, case and belt.The system is designed to be worn around the waist and is suitable for tourist guides, lecturers, trainers, etc...