... Version3.0 Sound-Proofing Popular Stereo Bluetooth headsetUSE:mobile phone, PDA, laptopsExcellent stereo soundBluetooth Version3.0Sound-ProofingR Bluetooth Stereo Headset Function list of ... Subwoofer speakers ofImpedance 100Sensitivity:120DBFrequency:15~40KHZPower consumption of Bluetooth stereo:30mAStatic State Current:2mAMaximum Current:<50mA SpecialtyMAXIM power amplifier8 sound ...