Home Hearing Aid Supplies OtoFerm “Digital Battery Tester” has been added to your cart. View cart SOLD OUT🔍 OtoFerm$6.75 Out of stock SKU: otofem-232 Category: Hearing Aid Supplies Additional information Weight .22 kg Dimensions 34 × .34 × .1 cm Related products Digital Battery Tester $6.00 Hearing Aid SuppliesAdd to cart Stethoscope Attenuator $41.50 Hearing Aid SuppliesAdd to cart Earmold Tubing $1.50 Hearing Aid SuppliesAdd to cart Oto-Ease $3.20 Hearing Aid SuppliesAdd to cart