Mini TWS Bluetooth Speaker includes the following features : 

• Bluetooth version: 5.0
• IPX4 waterproof
• Hands-free calling
• TWS couplet
• USB-C charging
• Mono channel mode
• Effective distance: > 10 meters
• Speaker: Ø45 mm, 4Ω 3W *1
• Frequency: 60-16KHz
• Charging parameters: 5V/0.5A MAX
• Operated with 1,200 mAh battery
• Type-c charging cable included

Material :

• ABS housing

Size closed :

• Diameter of 7.6 cm x Length of 7.7 cm
• Weight of 190 grams