Design Product color: Black Weight and dimensions Product depth: 23 mm Product height: 46 mm Product weight: 47 g Product width: 84 mm Efficiency FM Radio: Yes Maximum range: 1600 m Number of channels: 2 channels Temperature range (operation): -20 - 55 °C Bluetooth version: 5.2 Package contents Number of pieces: 1 User Manual: Yes Battery Standby time: 10 days Talk time: 13 h Charging time: 2 hours