The Drop + Hifiman R7DX is another collaboration between Drop and the biggest player in the headphone market, Hifiman. It is a closed-back full-size headphone using a Dynamic Driver. The price is set at $149.
Drop + Grell TWS1X is a new TWS IEM by Drop in cooperation with legendary engineer Axel Grell. It uses a 10mm custom dynamic driver and it's priced at $199.
Drop ALT is a mechanical keyboard with hot-swappable sockets. It's made of aluminum and it's priced at $180 (now dropped to $145).
Drop x Hifiman HE5XX is a planar headphone made in collaboration between those two companies. It costs 220USD.