Product Features <br />Hurricane H+ Bluetooth 4.1 Headphone<br />Ongoing luxurious Bluetooth 4.1 Headphone｣ｬ delighting the world.<br />Luxurious music enjoyment is always unreachable. For this reason｣ｬ Bluedio keep hard working on 3 years of R&D and testing｣ｬ manage to customize a wireless headphone with unrivaled timbre｣ｬ adapted to a variety of rugged circumstances and highly cost-effective. Thoughtful design｣ｬ unexpected superior sound｣ｬ make luxury become reasonable｣ｬ this is Hurricane H+ Bluetooth 4.1 headphone.<br />Thus｣ｬ H+ is compatible with iOS｣ｬ Android｣ｬ and Windows｣ｬ merely 40ms audio latency breakthrough defects of sound and picture are not synchronized while watching movie via Bluetooth. It also work as a BT receiver connecting mobile phone and professional amplifier wirelessly. Insert Micro-SD card which saved with music files into the headphone SD card slot. Remove Micro-SD card under Micro-SD card mode｣ｬ headset will change to FM mode. Insert Micro-SD card under FM mode｣ｬ headset will change to Micro-SD card mode. But it may affect function of the headset｣ｬ do not suggest the above usage.<br /><br />echnical specification:<br />Drivers: 57mm speaker X 2<br />Transducer type: dynamic<br />Bluetooth version: V4.1<br />Frequency range: 2.4GHz-2.48GHz<br />Operating distance: up to 10m (free space)<br />Bluetooth profiles: A2DP AVRCP HSP HFP<br />Impedance: 16 <br />Frequency response: 20Hz-20kHz<br />Sensitivity: 110dB<br />Distortion:<0.1%(THD) Talk time: u