If you're passionate about IT and electronics, like being up to date on technology and don't miss even the slightest details, buy  Wireless Bluetooth Speaker Kubic Box KSIX BIG-S1904069 300 mAh 5W Black  at an unbeatable price.

Frequency response: 80-20KHz
Includes: Micro USB to USB Cable
Power: 5 W
Range: 10 m
Approx. dimensions: 6 x 6,1 x 6 cm
Approx. charging time: 2 hours
Approx. autonomy: 4 hours
Connectivity: 
Bluetooth 5.0
Bluetooth
Type: 
Wireless
Universal
Bluetooth Speakers
Colour: Black
IP rating: IPX5
Battery capacity: 300 mAh
Country/Region of manufacture: Spain
Characteristics: 
Built-in microphone
Wireless
Only one speaker
Connections: USB
Battery type: Integrated
Power supply: Battery
Capacity: 300 mAh
Radio FM: No
Not included: WiFi