Product Parameters:<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)<br />Music playtime: up to 40 hours<br />Talk time: up to 45 hours<br />Standby time: up to 1625 hours<br />Charging time: about 2 hours<br />Operational temperature: -10 to 50 C<br /><br />Iconic powerful bass resonance<br />57mm ultra-large dynamic drivers｣ｬ turbine style housing｣ｬ and Bluedio's iconic surging low-frequency shock let you feel deep bass resonance for superior sound quality.<br />Ultra-long operation and carefree calling from Bluetooth 4.1<br />With the robust high speed CPU of Bluetooth 4.1 operating system｣ｬ Turbine Hurricane H boasts a long usage time of 40 hours of music｣ｬ 45 hours talk time｣ｬ and 1625 hours (approximately 67 days) standby time. Acoustic echo cancellation and noise reduction reduce ambient noise while speaking.<br />Customized function<br />Audio Sharing allows you to connect to another H headset via an audio cable｣ｬ and share music with your friends (* it is recommended that headphones with impedance of 32  or higher be used). Simultaneously connect two Bluetooth devices｣ｬ connect with your phone and tablet seamlessly｣ｬ and listen to music as you please!<br />Comfort<br />Custom fit