Cordless telephone landline with wired input
FIRSTPOWER offers a full assortment of back-up batteries delivering a multitude of applications as Network Power & Reserve Power. Applications include telecommunications, computers, security systems, emergency lighting, power plant systems, medical, alternative energy, railway crossings, and various forms of military equipment used in mission critical environments.
Network Power,Reserve Battery,7 Days Power Reserve Battery,Reserve Power Battery
Firstpower Tech. Co., Ltd. , https://www.firstpowersales.com