Durable Mini Hearing Aid Battery Tester, Lightweight Hearing Aid Battery Tester, PREMIUM MATERIAL: The hearing aid battery tester is made of plastic material, which is durable, lightweight and wear resistant. Suitable for hearing aid batteries of any size. PRACTICAL DESIGN: Our mini hearing aid battery tester is worked by sliding the battery contact points. With LCD screen display, it is easy to read the remaining power. EASY TO CARRY: Simple but effective little battery tester checker, the pocket size, lightweight and key-ring design, very convenient to carry with you. PERFECT FOR HOME USE: With an extra battery storage space. Great small tool can tell you if your battery of hearing aid is good, low, or needs to be replaced. Product description Features: Made of plastic material, which is durable, lightweight and wear resistant. Work by sliding the battery contact points. LCD screen display, easy to read the remaining power. With an extra battery storage space. Suitable for hearing aid batteries of any size. Pocket size and key-ring design, very convenient to carry with you. Specification: Item Type: Hearing Aid Battery Tester Material: Plastic Color: Blue Package List: 1 * Hearing Aid Battery Tester Size:6.3x2.8cm