Features 1、Plastic shell is broken-resistant, eco-friendly and durable 2、2 in 1 battery voltage tester / low voltage buzzer is designed for 1-8S Lipl/Li-ion/LiMn/Li-Fe battery 3、Designed to test the working state of lithium battery to keep high-efficiency working state 4、The buzzer alarm is triggered with red LED light when the voltage is lower than the set value 5、Loud alarm sound and accurate voltage display can prevent over discharge Features: 1. Plastic shell is broken-resistant, eco-friendly and durable. 3. Designed to test the working state of lithium battery to keep high-efficiency working state. 7. Small and compact size is easy and convenient to carry. Specifications: Shell Material: Plastic Color: As Picture Show For Battery: 1-8S Lipl/Li-ion/LiMn/Li-Fe Battery Size: 4 * 2.5 * 1.2cm / 1.6 * 0.98 * 0.5inch Weight: 28g Type: RC Accessory Package Includes: Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List