WINDLAND Pack of 5pcs 3.7V 501012 40mAh LiPo Battery Polymer Rechargeable Lithium Batteries Set for Earphone Headphones

Features: 501012 40mAh 3.7V earphone and lamp battery providing reliable power for your devices. 40mAh large capacity lithium battery with long sustainable use time. Bluetooth-compatible earphone lighting fixture with dedicate design compatibility with multiple devices. Stable output of 7V voltages ensuring stability and safety. With multiple protections such as overvoltages overcurrent shortcircuit overcharging etc. Specifications: Material: Lithium Battery Size: about 5x10x12mm/0.19x0.39x0.47inch Model: 501012 Type: Lithium battery Capacity:40mAh Rechargeable: Yes Voltages: 3.7V Quantity: 5pcs/pack Note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution. Package includes: 5Pcs 40mAh 3.7V Lithium Batteries