The PRO‑SONIC wireless audio system generates audio using advanced wireless technology to achieve clear sound with minimal perceivable time delay. The PRO‑SONIC Receive Module features an internal loudspeaker and a 6.35mm (¼") headphone socket for use with your choice of headphones. It can be attached to your harness or clothing using the metal belt clip. The PRO-SONIC system contains everything you need for clear, fast, wireless audio. PRO-SONIC is compatible with any detector* and comes with an SDC adapter cable and a handy car charger for charging on the go. Receive and Transmit modules Universal Charger (AC and car charger) SDC 2300 adapter cable Transmit Module Audio Cable (6.35mm/1/4-inch) Dual Charging Cable (1 × USB-A, 2 × USB Micro-B) Getting Started Guide *An additional 6.35mm (1/4”) to 3.5mm (1/8”) adaptor is required for use with Gold Monster 1000. PRO-SONIC TECH SPECS Radio frequency range: 2.402 – 2.480 Ghz Wireless range: ≤10 metres / 32 feet Operating time: Tx Module: 10 hours | Rx Module: 16 hours Stand-by time: Tx Module: 50 days | Rx Module: 100 days RF transmission power: 0 – +8dBm Audio amplifier power: 3 W Audio distortion: