● Product Name : Xingma Hearing Aid XM-737T
● Product Code : SEL839
● Brand Name : Xingma
● Model Number : XM-737T
● Maximum Saturation Sound Pressure : 129dB ± 4dB
● Maximum File Acoustic Gain : 50dB ± 5db
● Harmonic Distortion : =5%
● Frequency Response : 450 – 3500Hz
● Equivalent Input Noise : = 30dB
● Battery Type : AG 13 Button cell
● Operating Voltage : 1.5V
● Operating Current : =4mA
● Size 5.3 x 4.4 x 1.0cm 2.1 x 1.3 x 0.4in(L x W x H)
Xingma Hearing Aid XM-737T