Nevon Express supplies a wide range of high-quality sensors and modules which includes 3.7V 600 mAh Rechargeable Battery for Neck Bands. We aim at providing and satisfying all demands of customers and provides them high quality products with more convenience, higher efficiency and optimized cost. 3.7V 600mAH (Lithium Polymer) Lipo Rechargeable Battery also known as Lipo or Lipoly batteries are thin, light and powerful. This battery has a capacity of 600mAH. These Batteries are widely used in GPS, DVD, iPod, Tablet PC, MP4 Player, Power Bank, Mobile Backup Power Supply, Bluetooth Speaker, IOT and other DIY and Industrial applications.