ThinkSound offers two in-ear headphones, the Rain and the TS01 (Thunder) both come with a wood housing with aluminum baffle. The Rain features 9mm sound drivers while the Thunder gets 10mm drivers and both models feature passive noise isolation.
The Rain and Thunder offers 20Hz-20kHz frequency response and 3.5mm gold-plated plug. They come with flexible silicon ear inserts in four sizes, cord clip and cotton carrying pouch. Both of them come in Black Chocolate and Silver Cheery. The prices are $74.99 for Thunder and $99.99 for Rain.