Two way intercom in 1000 meter range Dual Noise Cancellation with DSP and CVC Technology Pop-up Antenna for Stable Signal Bluetooth 5.4 with Qualcomm Chipset (USA) 900mAh High-Capacity Battery High-Fidelity Sound Quality IP6/7 Waterproof Rating 20 Hours of Music Playback and Talk Time Control Method: Button Operation Maximum Connection: 2 Devices
