Casque Bluetooth à conduction osseuse DP8ALe Dellking DP8A is a headset Bluetooth Bone conduction headphones designed for professional communications, notably thanks to their integrated PTT button and external microphone for improved voice capture. Whether you're using a smartphone or a radio for phone calls or PoC calls, the DP8A, thanks to its integrated DSP, can manage two audio streams simultaneously (phone call and PoC communication), with the "listen together, speak separately"