This is the Latest Max model that made by Tigerbuilder, a lot of improvement compared with Bluetrum Max v1.5, improved sound quality, ANC, Transparency mode, Battery life, and a very good microphone.
These wireless headphones have the Airoha 1561M chipset and are made by Tigerbuilder. They support OTA and have ANC and transparency modes. They also have in-ear detection and the ability to change the Bluetooth name. They have a long battery life of approximately 50 hours and use Bluetooth version 5.3. However, they do not have quick switch between two devices, but they do support audio sharing.