This fits your . Feature: 1. Memory matching is simple and easy to us. 2. With FM radio function. 3. Using the latest R & D chip in the US, high definition sound quality. 4. High power earphone can be used in busy occasions. 5. 5 grade waterproof standard is adopted. Function: 1. Intercom functions: Two users full duplex talk,The host intercom can pair with other 4 intercom separately in 5 groups, and switch among one of these 5 groups to communicate.Hands free. 2. Music function: Stereo music/audio transmits from A2DP enabled phone/MP3/GPS), Advanced A2DP & EDR Bluetooth 3.0 profile. Application: 1. Special Interview for Mountaineering: Water-proof, wind-proof, big function, full-duplex, no need for PPT keys, free hands, ensure that no distraction when mountaineering, both can contact your teammates in time. 2. Concert: for lighting control, acoustics, security, communication between directors, timely and convenient. Full duplex real-time intercom. 3. Construction site: communication between tower crane driver and commanding officer to ensure safe construction. 4. Port command: container scheduling, command and so on. Specification: Brand name: Vnetphone Model name: V4C Bluetooth version: Bluetooth 3.0 Chip: CSR BC5 Battery capacity: 550mAh Battery type: polymer Charge and discharge times: 500 times Working voltage: 3.3V-4.2V Talk time: 8H Standby time: 150H Charging time: 2.5H Radio band: FM87.5~108MHz RDS: no Speaker power: 0.25W Waterproof grade: 5 level TTS: no Automatic volume control: No Working temperature range: -10℃ to +45℃(lowest and maximum working temperature) Charger specifications: DC 5V 500mA Package included:1 x Host 1 x Single Ear Headset 1 x Charging Cable 1 x Arm Bag 1 x 3 in 1 User Manual"
Vnetphone V4C Football Referee Bluetooth Intercom Headset 1200m Full Duplex BT Interphone Earphones FM for 4 Users B07H2DW2VW