PRYMEMAX™ BTH-550-MAX Wireless Speaker Microphone with Desk-Top Charger, Rotary Volume Control for 2-Way Radios, Cellphones and Tablets with Bluetooth (iOS or Android), Works with Most PTT (PoC) Apps
Works with most Push-To-Talk (PoC) Apps including ZELLO, ESChat, Wave Communicator, Streamwide, and Unity
Rotary Volume Control with ON/OFF Switch easy to use even if wearing gloves
Battery Life: 30 days Standby, 40 hours Talk Time, 80 hours typical time between charges
Comes with a wall charger and USB charging cable. Using this cable you can also charge the BTH-550-MAX from other USB sources like vehicle and computer
Heavy-Duty Rotating Belt Clip. Optional Mobile radio type hang-up button mount available
Typical wireless range up to 10 meters
Built-in 3.5mm earphone jack and almost any typical earphone will work
INCLUDES A DESK-TOP DROP-IN CHARGER
The side-button activates PTT function while the top button controls normal phone functions (answer, hang-up, etc)