Retekess TT123 2.4G Transmissor de microfone sem fio montado na cabeça com receptor para amplificador de voz, alto-falante, tour de ensino

Product Number TT123(Transmitter+Receiver) TR503(Single Transmitter) Weight 160g 115g 2.4G Wireless Communication Yes No Frequency Range 2400-2483Mhz 87MHz-108MHz Operating Hours 8h 8-10h Charging Time 4h 4h Working Distance 50m（open air） 30m（open air） Battery Capacity 400mAh 250mAh Retekess TT123 Conference Microphone 2.4G Head-mounted Wireless Microphone Transmitter With Receiver For Loudspeaker Teaching 1. Strong compatibility; voice amplifier; home stage speakers; portable sound reinforcement system; mixer (with 6.35mm microphone jack); FM transmitter; unsupported phones; notebook computers; Bluetooth speakers. 2. 2.4G wireless microphone; TT123 wireless microphone headset adopts the universal 2.4 GHz transmission; automatically connect within 3.2 feet. 3, 2 IN 1; TT123 wireless microphone is used as a universal headset microphone; or remove the head stand; handheld microphone ideal for es and lectures. 4. Charge work; stable wireless connection up to 164 feet in open area; built-in 400mAh rechargeable lithium battery; transmitter and receiver can be fully charged within 2-3h, and can be used for 6-8h. 5. Stable and comfortable; The curved design will not make you fatigue in the use of high impact; even when moving, the sweat-proof design can extend the service life of the product. 1. Frequency Range: 2400-2483Mhz 2. Audio sampg frequency: 16kHz 3. Output Power: 10 dB 4. Operating distance: 50M (open field) 5. Working Current: 35mA 6. Working voltage: DC 3.7V 7. Working time: 8 H 8. Transmitter battery capacity: 400mAh 9. Receiver battery capacity: 400mAh 10. Weight: body 81g(include battery) Transmitter * 1 Receiver *1 Charging cable * 1 6.5mm socket * 1 User Manual * 1