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Frequency band: 2.4 GHz Bluetooth protocol: up to v.2.1, data transfer speed up to 3Mbps Power class II: up to 10m working distance, up to 20m in the open air Full suite of Bluetooth profile application software enclosed Bluetooth 2.1-certified One Chip integrating radio, processor, flash program memory, and USB 1.1/2.0 interface Bluetooth 2.1 lower protocol stack and HCI Bluetooth 2.1 upper stack and profiles, including SPP, DUN, LAN, HSP, OPP, FTP, and SYNC USB 1.1/2.0 compatible LED status indicator Size: 5.5x1.5x0.8 cm
BTD-MINI3 Tiny USB Bluetooth v.2.1 20M support Win7