T-MAX S PRO deleting historical pairing information

T-MAX S PRO Bluetooth intercom pairing between two units

T-MAX S PRO Bluetooth onoff and language switching

T-MAX S PRO: phone ops, voice control, music playback

T-MAX S PRO FM function and music/radio switching

T-MAX S PRO 4-unit intercom connection and usage

KY PRO Music Sharing Mode Operation Video

KY PRO Pairing with Mobile Phone and FM EnglishChinese Swit

KY PRO Connecting and Communicating with Third-Party Brands

How to Pair Four KY PRO Devices

How to Pair Two KY PRO Devices

KY Connecting and Communicating with Third-Party Headphones