SUPERIOR SOUND QUALITY Enjoy superb, balanced sound and supreme comfort with the INONE Studio monitor headphones. powerful bass, clear vocal, and crisp high tones form perfect balanced sound. BUILT TO STAY COMFORTABLE The high quality padded ear cushions are specifically designed for monitor headphones maximum comfort and noise isolation. The headband is adjustable and stretchable for you to find the desired angle you like to fit in. RECHARGEABLE Deep, accurate bass response, Extended frequency range, Rechargeable Specification: Bluetooth Profiles: HSP,HFP,A2DP,AVRCP Effective Range: 10m Music Time: ≥6 Hours Talk Time: ≥8 Hours Standby Time: ≥180 Hours Input: DC: 5V Charge Time: 1.5 Hours Charge Port: USB Battery Capacity: 150mAh Microphone: Support MIC Sensitivity: -55±3dB Sensivity: 100dB±5dB Power To Bear: 30mW Resistance:32Ω Dimension: 20*17*6cm Product Weight:138g