Wireless Bluetooth Earphones includes the following features : 

• 180° Rotation design, free to change the direction of left and right ears
• Bluetooth version: 5.0
• Waterproof and sweatproof
• Distance of connection: >=10 m
• Impedance: 32Ω
• Talking time: 18 hours
• Playing time: 20 hours
• Operated by lithium battery
• Green, red and black colors are available

Material :

• ABS plastic housing

Size closed :

• Length of 7.5 cm x Width of 4.5 cm