text: sun,agar tumhari phone battery jaldi khatam ho rahi hai, toh airplane mode lagao, tab battery life badh jaati hai, tumhe yeh pata tha kya?wow, yeh toh kaam ka idea hai, par kabhi kabhi toh mujhe emergency mein call karna hota hai, toh mujhe thoda tension hota hai, kya yeh sach mein effective hai?