Compatible With Kyocera Duraforce PRO 2 E6910 E6920.?Security Certified? Certified by CE, FCC and RoHS for safety. Every battery has passed factory testing, built-in circuit protection ensures both safety and stability. More than 500 recharge cycles over the life of the battery. ?Warranty?30 days money back, 12 months of warranty! Support: Welcome to email us if you have any issues, questions or concerns, we will response to solve the problem within 24 hours. ?Compatible With Device Model?for Kyocera Duraforce PRO 2 E6910 E6920. ?Battery Info.?Voltage:3.8V, Capacity:3240mAh /12.3Wh;.