Item Details: 
 Pryme BT-500 Bluetooth Adapters for Portable Two-Way Radios
The PRYME BLU Adapter allows you to use a compatible wireless Bluetooth headset or other audio accessory with your portable two-way radio. The PRYME BLU Adapter is compatible with thousands of off the shelf consumer audio accessories and pairs easily, allowing you to operate wirelessly. 
Works with most off-the-shelf Bluetooth Headsets (long talk-time recommended). Use the PTT button on the adapter to Transmit or add Optional 
BT-PTT switch.
Features:
- Connects Bluetooth headset to radio, replacing microphone or wired accessory.
- Compatible with thousands of Bluetooth headsets (headset not included).
- Easy pairing, retains connection after power-off.
- PTT options: adapter button, optional wireless PTT, optional wired PTT (sold separately).
- Multi-pin models powered by radio; single-pin models use rechargeable battery.
- Optional wired accessory for privacy (sold separately).
- "Smart Switch" routes audio to connected accessory or radio’s speaker/mic (not on all models).
- LED indicates wireless connection.
Longer Cord Version: Longer cable puts PTT up where it is easier to reach and also improves wireless range.
Available as:
    
        
            
                | Radio Brand | Pryme Adapters | 
        
        
            
                | EF Johnson | BT-523EFJ | 
            
                | Harris | BT-500-H8, 
                    BT-537, 
                    BT-555 | 
            
                | HYT / Hytera | BT-500-H3, 
                    BT-500-H8, 
                    BT-500-H9, 
                    BT-555 | 
            
                | Icom | BT-510, 
                    BT-520, 
                    BT-530S | 
            
                | Kenwood | BT-501, 
                    BT-501 DIRECT, 
                    BT-501LC, 
                    BT-511 | 
            
                | Motorola | BT-503, 
                    BT-523, 
                    BT-533, 
                    BT-543, 
                    BT-583, 
                    BT-583APX, 
                    BT-500-M11, 
                    BT-500-M20 | 
            
                | Vertex Standard | BT-502, 
                    BT-522S, 
                    BT-532, 
                    BT-542 |