降噪头戴耳机超详细的规格书（含可靠性测试,ANC曲线）

1.Introduction介绍1.1可拉伸、折迭头戴式蓝牙降噪耳机。1.2 Product   Features/产品特点1）可折叠、拉伸，方便携带。2):耳机符合人体工学设计，配戴舒适。3):耳套采用蛋白皮+惰性海绵，长时间佩戴无不适感。4):高保真效果，给聆听音乐带来更真实的旋律。2. General Specification List一般参数表2.1Cable Specification/插线规格音频输入线L=1.2M（3.5mmPVC黑色、圆线）2.2 Specification(Headphone)/ 耳机声学规格1)、型号：G2；2)、额定输入功率(Bluetooth)：10ｍW；3)、最大输入功率(Bluetooth)：40ｍW；4)、耳机灵敏度(Bluetooth)：99±3dB  At1KHz with CRY6151；5)、频率范围：20Hz-20KHz6)、喇叭直径：Φ40mm；7)、喇叭阻抗：32±15%Ω(DCR)3.Acoustics Specification 声学参数规格4.1Acoustical Properties 声学特性1) Buzzer & Rattle( Line Test ):Not Be Audible At 0.53VSine Wave Between 50Hz~4 kHz.2)  Maximum Input Power:IEC-6028-5, 60s On/120s Off 10 Cycles (Room Temp); At 40mW(1V);No Permanent Damage May Occur After Testing.3.2 A2DP Profile Acoustic test station: (Headphone for approval test)1)  Headphone Sensitivity(A2DP Profile)：99±3dB, At 1kHz With IEC60318 Coupler AndInput -10dBFS Sine signal, Turn The Headphone To Maximum Volume& ANC OFF.2) Frequency Response (A2DP Profile):Test condition:  Frequency Response Testing Range is 50~8000Hz. And The OCT Is 1/6.With IEC60318 Coupler And Input -10dBFS Sine signal, Turn The Headphone To MaximumVolume& ANC OFF.