● Product name : Xingma Hearing Aid XM-919A
● Product Code : SEL841
● Brand Name : Xingma
● Model Number : XM-919A
● Wearing Mode: In-ear
● Maximum loudness: 133 +/- 4 dB
● Sensitivity: 48 +/- 5 dB
● Frequency response: 300~4500 Hz
● Noise: =< 30dB
● Cable length: 110 cm
● Features: Adjustable volume
● Color: Beige
● Material: Plastic
● Quantity: 1
● Power: 1 x LR44 battery (included)
● Packing List:
1 x Voice amplifier
1 x Earphones (110cm-cable)
1 x LR44 battery
1 x English user manual
Xingma Hearing Aid XM-919A-- Compartment for installing AG13 batteries (1 battery is included). Volume control (sensitivity) with built-in switch, a convenient clasp and a hole for hanging by a cord. Open the battery compartment cover by sliding it forward to install the AG13 battery, and place the battery in the cartridge according to polarity: + and -; Turn the volume control to the right until it clicks (power on) and to the very minimum position of the volume. Install the headphone plug into the jack.