best bluetooth stereo earphones USE:mobile phone, PDA, laptops Excellent stereo sound Bluetooth Version3.0 Sound-Proofing

Newest bluetooth stereo headset with microphone USE:mobile phone, PDA, laptopsExcellent stereo sound Bluetooth Version3.0Sound-Proofing

R Bluetooth Stereo Headset

Function list of headband headphone:Bluetooth Version3.0Sound-ProofingStereo wired audioSupport MP3 PlayerSupport USB file transferSupport Micro-SD Electronic Specification:Charged by Micro-USBCharged voltage 5V, Charging galyanic current 300mA3.7V 650mAH polymer chargeable batteryBluetooth freq: 2.402-2.48GHz3D speaker combination, 2 Subwoofer speakers ofImpedance 100Sensitivity:120DBFrequency:15~40KHZPower consumption of Bluetooth stereo:30mAStatic State Current:2mAMaximum Current:<50mA SpecialtyMAXIM power amplifier8 sound trackHIFI level2 built-in large sound speakers with diameter of 50,coupled with 6 3D speakers AccessoriesUSBLeather Sleeve3.5 audio wireUser manualGross Weight:0.85KGPackage Size: 28*16.8*9.2cm