Waterproof Speaker $ 7.13 Basic parameters: Frequency: 2.402-2.480GHz Maximum output power: 3W*2 MIC sensitivity: -32db Sensitivity: Better than -82dBm Distance: 10-30meters Charging voltage: 3.7V4.2V DC Operating voltage: 4.8V5.5V DC Working current: 150MA Quiescent current: >1UA Battery: 500Mah Size988845mm
