Features:
OOTDTY
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,

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

Package Includes:
5Pcs 40mAh 3.7V Lithium Batteries

Note:
Please allow 1-2cm errors due to manual measurement.
Please allow for slight color differences due to different display resolution.