Xiamen Soroya Hearing Technology Co., Ltd.  

Product Name: Rechargeable Charging Hearing Aids Digital Open Fit Model NO.: soroya-jl Trademark: OEM Transport Package: Compact Packing Origin: China HS Code: 9021400090 Product Description Product Function Description1. Leave the charging box with 3 beeps and start up. The program presets P1.2. Volume adjustment: Press forward until the volume + is heard, three beeps are the loudest, and press backward until the volume-is the lowest sound, adjust the size, the speed is uniform, the sound is no howling, no Noise, etc.3. Program switching: long press the forward key, the program is progressive, long press 2-3S beep once, switch to P1 program; two beeps, switch to P2 program, three beeps to P3 Program, long press the back button, the program fades away (P1 quiet, P2 noise reduction 1, P3 noise reduction 2)