Product size: 80 * 68.2mm
Bluetooth version: v5.0
Power output: RMS 3W * 1
Frequency response range: 1800hz-80khz
SNR: ≥ 80dB Sensitivity: 500mv
Impedance: 4hm (Ω)
Input: DC 5V
Horn unit: 4 Ω 3W * 1
Battery capacity: 300mAh
Size: 602030 polymer
Charging time: 2-3 hours