CRTGW G20 Wireless Headset

Specification - Color: Black+ red/ Black ( Optional ) - Material: Plastic and silica gel - Overall size: 13* 16. 5cm/ 5. 1* 6. 5in - Modle: G20 - Speaker size: 10mm/ 0. 4in - Bluetooth version: 5. 0+ EDR - Maximum Bluetooth receiving distance: 10 meters/ 32. 8ft - Bluetooth standby time: 220 hours - Frequency response range: 20hz- 20khz - Speaker impedance: 22? - Battery capacity: 200mAh - Charging time: 1. 5 hours - Bluetooth working time: 18 hours - Input voltage/ current: 5V/ 1A Note: Please allow 1- 3cm ( 0. 4- 1. 18 ) difference due to manual measurement and slight color variation for different display setting. Package Including Package list: 1* Earphone 1* USB Charging Cable 2 Pairs Replace earmuffs 1* User manual