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Feature: 1. 5.0 dual-mode 3-core low-power chip, support 3rd party connection2. Multi-group intercom, best for 6 persons, the intercom distance is 2 kilometers.3. 2-person music sharing4. Colorful lights5. CVC intelligent noise reduction6. Equipped with high-fidelity dynamic stereo headphones7. IP67 waterproof8. 1100mAh high capacity batterySpecification:Frequency: 2.4 GHzWeight: 55.2gDimensions: 88 x 53 x 31 mm/3.3.46x2.09x1.22"Battery capacity: 1100mAhStandby time: After 15 minutes of standby, it will enter the super power saving state, and the machine will automatically shut downContinuous working time: 22 hours (phone calls), 22 hours (Bluetooth intercom), 20 hours (playing music)Charging time: 2.5HCharging port: USB Type CCharging voltage: 5VCharging current: 450mAPlaying music current: 40mAVersion: V 5.0 (dual mode, 3 cores, low power consumption)Bluetooth search name: FXOperating range: 2 km (support for multiple people, 6 persons best, up to 10 persons)Supported protocol: HFPV1.6, HSPV1.2, A2DPV1.2, AVRCPV1.4, HSP, DIV1.3Intelligent voice prompt: supportConnect 2 phones at the same time: supportMusic sharing: support (between 2 persons)Prompt langugage: Support Chinese and English switchingVoice Control (Voice Call): SupportedColorful lights flashing: support (dynamic lights)Noise reduction: CVC (effectively filter out wind noise at high speed)Noise reduction capability: 120km/hFM frequency band: 50-115MHzWaterproof grade: IP67Automatic answering function of incoming calls: supportExternal audio intercom interface: support intercom K line connection (multi-person intercom can be performed after access)Sensitivity: -90dBmIntercom: Support multi-person intercomBluetooth connection with other brands: support (intercom can be connected with any third-party Bluetooth headset)Audio signal-to-noise ratio: ≥75dbAudio output type: StereoDistortion: ≤0.1%Audio performance: support AAC, MP3, SBC, stereoAudio output power: single 130mW, left and right channel output 260mW (maximum output)Color: Black, Silver (optional)Frequency band: 2.402GHZ--2.480GHz(ISM)Battery reminding function: supportHeadphones: Hi-Fi Dynamic Stereo HeadphonesProgram update: support USB upgradeWorking temperature: -10-+70 degrees CNote:There may be slight size deviations due to manual measurement, different measuring methods, and tools.The picture may not reflect the actual color of the item because of different photographing light, angles, and monitors.Package includes:1 X Bluetooth Receiver1 X Headset (2 in 1)1 X Clip1 X Clip with Tapes1 X USB Cable4 X Headset Tapes2 X Round Tapes1 X Manual