Specifications: Integrated Bluetooth Serial Pass-through Module Slave 4 Pin Brand new, factory sealed, never open High frequency: 2.4GHz With VCC, GND, TXD, RXD foot for the Bluetooth Use the CSR mainstream bluetooth chip Bluetooth V2.0 protocol standards Input voltage: 3.6~6V; Prohibit more than 7V Fully compatible with Arduino High speed: Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps Incredible small size (about the size of a dime ), and RoHS Compliant TTL data transparent Transfer between a host Bluetooth device Item Weight: 0.2 ounces Works for Bluetooth TTL transceiver module which allows your target device to both send or receive the TTL data. Coverage up to 30ft. Built in antenna. Working current: matching for 30 mA, matching the communication for 8 mA Used for GPS navigation system, water and electricity gas meter reading system With computer and bluetooth, bluetooth adapter, PDA, seamless connection equipment .

• Brand new and high quality.
• Works with any USB Bluetooth adapters.
• Coverage up to 30ft.

Brand new and high quality.Games&Tech