Tired of programming your two-way radios through PC or laptop? Tired of writing the same frequency for tons of walkie talkies whenever your group's information update?To meet your requirements of convenient frequency writing for your Radioddity GA-2S / Baofeng BF-888s / BF-777S/ BF-666S / UV-5R which doesn't own a LCD display screen and number buttons, here comes the latest Bluetooth wireless programming adaptor!Just plug and program directly. Don't need programming cable, don't need programming drive, even don't need a computer or laptop! Add to your cart and enjoy the convenience from now on!Specifications:Operating temperature: -5°C - +40°CStandby time: about 8 hoursCharging time: about 2 hoursCompatible system:I0S: 8.0 or aboveAndroid: 4.4 or aboveCompatible Model:Baofeng BF480, BF-888S, BF-777S, BF-666S, or any radio that uses BF-480 softwarePlease note that more compatible models are coming soon.How To Use:1. Install AppScan the QR code or search [One Time Bluetooth Connector] in App Store, download it for free.2. Device SearchPlug the adaptor into your walkie talkie, switch it on.Turn on your walkie talkie.Open the APP and Bluetooth function, register a account to login, search for equipment, make a paired connection.3. Modify ParametersReturn to homepage to obtain you walkie talkie's parameters.Click "Edit" to write frequency, and modify other parameters of the walkie talkie.4. Save SettingSave and name you setting of the current walkie talkie, so you can overwrite the same setting for other ones. Note:If fail to connect to Bluetooth, the reasons may be as follow: forget to switch on; the battery died.Package Content:1 x Bluetooth Programming Adaptor1 x Charging Cable(Radio not included)