Key ball Shaped Bluetooth Speaker with Lanyard includes the following features :

• 2.1 Version Bluetooth with EDR
• Output power: 2W
• Frequency response: 20hz-20Khz
• Signal & noise ratio: >=85±2dB
• Speakers: 28mm
• Built-in lithium battery
• Battery capacity: 230mah
• Battery input: DC 5V / 250mA
• Up to 3-4 hours of playback time
• Charging time: 1.5 hours 
• USB cable included
• Lanyard for easy carrying and hanging

Material :

• ABS plastic housing

Size closed :

• Diameter of 5.7 cm x Thickness of 2.4 cm