... Factory Price Corded Mobile Phone Handset/Receiver DOCK Stand for Iphone,Blackberry and Samsung-Fashion New Product CE,FCC,RoHSWhy ... Frequency:20-20000Hz Sensitivity: 111dB±3% Impedance: 150ohm Speaker diameter: 38mm Cord length:2m Plugs type:Φ3.5 mm ... with Iphone,Blackberry,Nokia,Samsung with Sidekey volume control and answering/hanging up button.116B: Wireless Bluetooth Handset compatible with ...