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Polar Ignite - gPS Smartwatch - Fitness watch with Advanced Wrist-Based Optical Heart Rate Monitor, Training guide, WaterproofDesigned for those who push their limits and want a workout partner to guide them along the way, the Polar Ignite is a next generation fitness watch created for those who want to reach their goals the right way Integrating a..

Retekess Wireless Microphone Headset System with 1 TR503 Transmitter and 5 PR13 Portable FM Radio Receiver with Earphone for Church, Tour Guide, Training, Theater, Museum, School, FactoryQ:why the Sound is very weakA:The sound not only depends on the mic volume but also depends on fm receiver volume.So please add the volume of microphone with press..

Portable Bluetooth Voice Amplifier, Voice Amplifier for Teachers Lightweight Personal Microphone with Speaker Wired Headset, Apply to classroom, Elderly, coaches, Training, Presentation, Tour guideKozyOne - Professional anti-howling voice amplifier 1 The double voice coil and high power loudspeaker, low weight, bring clear sound, strong penetrating..

Voice Amplifier, Towevine Rechargeable Microphone for Teachers, Portable Speaker with Headset and Waistband for Classroom, Singing, Coach, Training, Presentation, Tour Guide (Pink)Package: 1* voice amplifier, 1* wired headset microphone, 1*waistband, 1* USB cable, 1* USB charging, 1 * ManualFeatures of Voice Amplifier, Towevine Rechargeable Microph..

Voice Amplifier, Towevine Portable Rechargeable Microphone Speaker with Headset and Waistband for Teachers, Classroom, Singing, Coach, Training, Presentation, Tour Guide - BluePackage: 1* voice amplifier, 1* wired headset microphone, 1*waistband, 1* USB cable, 1* USB charging, 1 * ManualFeatures of Voice Amplifier, Towevine Portable Rechargeable Mi..