30W CORALSTAR Handheld Megaphone 619U with Rechargeable Battery Loud Hailer

Features: • USB, SD Card • Record function (240s) • Siren function • Volume control Specifications: • Power：30W • Battery: Rechargeable Lithium battery 1200mah • Discharge time: 8-20 hours • Built-in Microphone: Yes • Audible Range: 500m • Size: 660*420*450mm