[forumuid]

Alipay has a interesting and convenient feature named Acoustic Payment,which support Person-To-Person payment through mobile phone's Speaker

[rahimnathwani]

Wow. This is pretty cool. In the English version on Android, it's called 'Sound Pay'. When activated, it makes a repeated 'shoop shoop-shoop-shoop' sound, whilst it scans for other devices in the same mode.