02:10 00:30 #put sim card #login tracking software platform and app
00:42 #put sim card #login tracking software platform and app
00:45 #Product testing #Product use
00:38 Test lamp and waterproof
00:45 ST-901A have good promotion discount now , ST-901A with relay Can cut engine remotely
00:40 Small size and water proof, With 1000mAh battery ,Voice monitor functions .
00:28 1.Small size and water proof.
2.With 1000mAh battery.
3.Voice monitor functions
4.48mm*25mm*18mm