The SR10i is a Bluetooth two-way radio adapter based on Bluetooth 2.1+EDR technology. You can connect various two-way radio devices in the market by using SR10i & may talk wirelessly using Bluetooth headsets in the market. Along with the SR10i, you can talk by phone or by two-way radios at the same time. The SR10i has two AUX ports that enable you to connect non-Bluetooth devices such as GPS. Along with SR10i, you can talk by phone & two-way radios at the same time, or listen to the guides from GPS Navigation. The SR10i may cover such a various application areas as outdoor sports & activities or security. Features Bluetooth handsfree adaptor for two-way radios Bluetooth handsfree gateway for mobile phones Connect 1 two-way radio & 1 mobile phone simultaneously Compatible with standard stereo or mono Bluetooth headsets AUX input for GPS Belt Clamping Firmware upgradeable Two-year limited warranty Specifications General Talk time: 12 hours Standby time: 10 days Operating temperature: -10˚C ~ 55˚C Dimensions: 108 mm x 52 mm x 29 mm (4.3 in x 2.0 in x 1.1 in) Weight: 81g (2.86 oz) Bluetooth Profiles: Headset Profile, H&-Free Profile (HFP) Bluetooth 2.1+EDR Input 3.5mm jack port x 2 GPS navigation Cellular phone (AUX2 only) Mini DIN port x 1 2-way radios (Kenwood, Midl&, motorola, I-com, YAESU) 2.5mm jack port x 1 for wired PTT button Battery Charging time: 3.5 hours Type: Lithium polymer battery