SHIDU S40 UHF Wireless Voice Amplifier Portable Bluetooth Microphone Loud-Speaker for Teaching Super

SHIDU S40 UHF Wireless Voice Amplifier Portable Bluetooth Microphone Loud-Speaker for Teaching Supermarket Promotions - Blue Support wireless Bluetooth connection, version 5.0 transmission is more stable and farther Connect mobile phones, and tablets at any time, become Bluetooth speakers, enjoy music Upgraded UHF wireless acoustic microphone, high-definition, and high-sensitivity noise-canceling microphone core makes the pickup clear and more accurate 40 adjustable frequency points, 50 meters wireless transmission distance, multi-person use without string The newly upgraded 1500mAh high-capacity battery can last longer Scope of application: Amplifier used for teaching/tour guide explanation/supermarket promotions, etc. Specifications: Item model number: S40 Bluetooth: V5.0   Output power: 10W Amplifier battery: 1500mAh Microphone battery: 550mAh Product weight: 256g Battery life: 8 hours Product size: 112 x 90 x 42mm Peripheral interface: TF card/USB/MIC/charging socket