ZC3301 is a highly integrated low power SoC for Bluetooth IoT applications. This SoC is compatible with Bluetooth 4.1 specification with Low Energy, Bluetooth3.0, 2.1+EDR.
ZC3620 is a high integrated SoC with Bluetooth 2.1 and EDR feature.
ZC5605/ZC5615 is a compact, high integration, ultra-low cost, CMOS SoC with radio frequency transceiver and baseband processor compliant Bluetooth? 2.1 including Enhanced Data Rate (EDR) up to 3Mbps. ZC5605/ZC5615 is optimized for any Bluetooth data and/or voice applications that require standard ?Bluetooth Host Control Interface (HCI) via UART