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V4 Plus 4 Perfon Group Bluetooth Intercom for Referee Our V4 Plus bluetooth intercom supports up to 4 person pairing and talk at the same time. Key Feature Advanced Bluetooth 5.1 Version The advanced Qualcomm Bluetooth chip with optimized Bluetooth version 5.1 dramatically increase the transmission rate and while keep the low-energy consumption. Clear and Stable Sound With improved CVC noise reduction technology, the high-fidelity speakers also can make the sound you hear clear and stable. Referee Intercom Accessories Comes with all the accessories you need for installation, and it's easy to get started right away. IP65 Waterproof With IP65 waterproof, the headset could handle almost all weather conditions. Product Parameter Bluetooth version: 5.1 versionSupport: CVC noise reduction, 3D soundIntercom distance: Up to 1500 meterTalk Time: 18 HoursStandby Time: 260 HoursWaterproof rating: IP65 Wide Applications In addition to soccer referees, V4 Plus is suitable for driving coaches, venue scheduling, construction sites, volleyball, and other outdoor activities. It is also suitable for communicating with companions while riding a bicycle. Q1: Do you need cell phone reception to use this? A1: Not necessary. The intercom can be connected with another via Bluetooth without cellphone reception. Besides, you can connect your phone to listen to music, make calls as a headset. Package List 2 Pack Package List: 2*V4 Plus referee intercom; 2*Ear Speaker and Microphone; 2*Charging Cable; 2* Armband for Referee; 2*User Manual 3 Pack Package List: 3*V4 Plus referee intercom; 3*Ear Speaker and Microphone; 3*Charging Cable; 3* Armband for Referee; 3*User Manual 4 Pack Package List: 4*V4 Plus referee intercom; 4*Ear Speaker and Microphone; 4*Charging Cable; 4* Armband for Referee; 4*User Manual V4 Plus Referee Intercom FBIM Professional Referee Intercom Mesh F6 Referee Headset HIFI Earphone V6 Pro Referee Intercom Buying Options Buying Options Buying Options Buying Options Buying Options Customer Reviews 4.3 out of 5 stars 92 4.0 out of 5 stars 64 5.0 out of 5 stars 1 4.0 out of 5 stars 64 4.0 out of 5 stars 47 Price $237.98$237.98 $459.80$459.80 — no data $16.99$16.99 $83.99$83.99 Number of Pieces 4 4 6 1 2 Simultaneously Conversation 4 Person 4 Person 6 Person 1 Person 2 Person Intercom Toggling 4 full-duplex real-time intercom 4 full-duplex real-time intercom 6 full-duplex real-time intercom 4 full-duplex real-time intercom 1 host switching to other 5 Talk Time 24 Hours 19 Hours 19 Hours 10 Hours 12 Hours Talking Distance 800 M 1500 M 1000 M 1000 M 800 M Noise Cancellation Technology CVC CVC CVC DSP DSP Hands-free Communications ✓ ✓ ✓ ✓ ✓
【Clear and Stable Sound】Improved CVC noise reduction technology and Bluetooth 5.1 provide clear and stable sound, even in noisy environments.
【Wide Applications】V4 Plus is suitable for most competition referees and outdoor activities like soccer, football, volleyball, basketball referees, golf referees training, construction sites, crews, venue scheduling.
【4-Person Group Intercom】V4 Plus allows 4 person to connect for conference intercom, with a total range of 1500 meters.
【Low Power Consumption】With circuit optimization, power consumption is reduced by 20%. Talk time is up to 18 hours, music playing time is up to 24 hours, with just 2 hours of charging.
【Waterproof】The IP65 waterproof headset can withstand most weather conditions, with a temperature range of 14℉ to 122℉, suitable for use in most countries and regions.