Philips SHB5850WT/27 Wireless Bluetooth Headphones, White Type: Headphone Driver Unit: 8mm Frequency Response: 10Hz-21KHz Input Impedance: 16 ohms Power Supply: Maximum power input: 20 mW Sensitivity: 107 dB/mW Weight: 0.42 oz. Wireless Type: Bluetooth version: 4.1 Bluetooth profiles: A2DP, AVRCP, HFP, HSP |