Bright 401 Signature feature 100% Digital processing for exceptional sound quality 2 channels WDRC amplifier 12 bands frequency shaping Low level expansion Low battery warning Earhook design,easy operating volume control Memory switch tone Low frequency cut setting MPO trimmer Low current consumption Advantages Digital BTE High power design Low cut & MPO trimmer by rocker switch Technical Data Peak OSPL90(dB SPL) 133 OSPL90-HFA(dB SPL) 128 Peak Gain(dB) 76 HFA/FOG(dB) 65 Reference test gain(dB) 52 Frequency range(Hz) 200-4200 Distortion % @ 500Hz 2.0 @ 800Hz 1.0 @ 1600Hz 1.0 EQ input noise(dB) 20 Battery Size 675A Battery Current(mA) 1.0

• High Power BTE digital Hearing aid
• MPO & Low-cut Trimmer
• Roller Volume control
• Max saturation sound pressure level(SSPL) 130dB±4dB?Full on Acoustic Gain 60±5dB?Total Harmonic Distortion(THD) F>1000H ?15% F
• 675 Size Battery(required but excluded)

High Power BTE digital Hearing aidRetone Hearing