Bluetooth speaker with a rectangular concrete body and bamboo finish. It features 5W of power, a 5W wireless charger, and a 1200mAh rechargeable Li-ion battery. Bluetooth version 5.0. Charging voltage: 5V. Lithium battery: 600mAh, 3.7V. Playtime: 3-4 hours. Operating distance: Up to 10 meters. Frequency response: 280Hz-16kHz. Impedance: 4 ohms. Power output: 5W. THD: Less than 10%. SNR: >65dB. Wireless charger output: 5W. Instruction manual available in four languages: Spanish, English, French, and Italian. Presented in an eco-friendly box.