Use: Storage compartment for 2 extra batteries.
Material: plastic
Package list:1 x Hearing Aid Battery Tester
Color: black/blue
Size: 6.4*2.9*1.8cm
Features:
<< Display: Clear digital display indicates battery strength.
<< Application: Works with most size of hearing aid battery.
<< Compact: Mini size, comes with a keychain, easily carry and store.
<< Function: Hearing aids began to alarm if the voltage is lower than 1.1V , remind to replace the battery in order to achieve best effect
Notes:
1. Please allowed 1-3mm differences due to manual measurement, thank you for your understanding!
2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item.
