This Green Bluetooth speaker boasts with product parameters of:
- Speaker: 4 5W : 52 mm
- Bluetooth standard: 5.1 + EDR
- Transmission distance: 10-25 M
- Frequency Response: 100Hz-20KHz
- Size: 81(H) x81 mm (W)x65mm (D)
- Play time: 3-6 Hours
- Signal-noise ratio: 75db
- Distortion degree: 1% 1W 1KHZ