"Composição e Benefícios dos Adubos para Potencializar o Crescimento e a Produção das Plantas" Aqui estão as composições e informações sobre os adubos que mencionamos: Compre mudas frutiferas no Mercadolivre 1. Pó de Rocha Basalto Composição : O pó de rocha basalto é um remineralizador de solo que contém uma variedade de minerais essenciais. Sua composição pode incluir: Silício (SiO2) : Ajuda a fortalecer as plantas. Ferro (Fe) : Importante para a fotossíntese. Magnésio (MgO) : Essencial para a clorofila. Cálcio (CaO) : Melhora a estrutura do solo e o desenvolvimento das raízes. Potássio (K2O) : Auxilia na resistência das plantas e na qualidade dos frutos. Fósforo (P2O5) : Essencial para o desenvolvimento das raízes e floração. Outros oligoelementos : Manganês, cobre, zinco, entre outros. Atenção temos também Pó de Rocha basalto- R$12,00 KILO Adubos NPK - 10-10-10 - R$12,00 kilo Adubos NPK - 10-14-08 - R$12,00 kilo Ad...
Professional UHF wireless microphone handheld lavalier condenser microphone family karaoke church school stage microphone
Professional UHF wireless microphone handheld.
Link da Loja - Store Microphone
product name: Professional UHF wireless microphone
Specifications: one for eight UHF wireless microphones
Accessories: conference, hand-held, lavalier, headset
Product remarks: high-cost performance, stable performance
Category: Wireless Conference Microphone Series
Technical Parameters
Comprehensive characteristics
Carrier frequency range: 610MHz-690MHz (depending on applicable country range)
Modulation method: FM frequency modulation
Maximum frequency deviation: ± 45KHz
Frequency response: 50Hz-15KHz
Signal to noise ratio (S / N):> 105dB (A)
Distortion: (1KHz): <0.3%
Working temperature: -10 ℃ ~ 55 ℃
Working distance: 80 meters (under ideal environment)
Receiver
Oscillation mode: PLL (Digital Frequency Synthesizer)
Spurious suppression: ≥80dB
Image suppression: ≥80dB
Sensitivity: 5dBuV
Audio output level: balanced output (XLR output jack): 250mV / 600Ω
Unbalanced output (1/4 ”output jack): 400mV / 3KΩ
Working voltage: DC 13.5-16V
Working current: ≤800mA
Specifications: one for eight UHF wireless microphones
Accessories: conference, hand-held, lavalier, headset
Product remarks: high-cost performance, stable performance
Category: Wireless Conference Microphone Series
Technical Parameters
Comprehensive characteristics
Carrier frequency range: 610MHz-690MHz (depending on applicable country range)
Modulation method: FM frequency modulation
Maximum frequency deviation: ± 45KHz
Frequency response: 50Hz-15KHz
Signal to noise ratio (S / N):> 105dB (A)
Distortion: (1KHz): <0.3%
Working temperature: -10 ℃ ~ 55 ℃
Working distance: 80 meters (under ideal environment)
Receiver
Oscillation mode: PLL (Digital Frequency Synthesizer)
Spurious suppression: ≥80dB
Image suppression: ≥80dB
Sensitivity: 5dBuV
Audio output level: balanced output (XLR output jack): 250mV / 600Ω
Unbalanced output (1/4 ”output jack): 400mV / 3KΩ
Working voltage: DC 13.5-16V
Working current: ≤800mA
Hand-held transmitter
RF power output: 30mW maximum (depending on applicable national regulations)
Oscillation mode: PLL (Digital Frequency Synthesizer)
Transmitting frequency stability: <30ppm
Dynamic range: ≥100dB (A)
Frequency response: 50Hz-15KHz
Maximum input sound pressure: 130dB SPL
Microphone pickup head: moving coil
Power supply: 2 (1.5V) AA type alkaline batteries
Conference belt-pack transmitter
RF power output: Max 30mW (depending on applicable country range)
Oscillation mode: PLL (Digital Frequency Synthesizer)
Transmitting frequency stability: <30ppm
Dynamic range: ≥100dB (A)
Frequency response: 50Hz-15KHz
Maximum input sound pressure: 130dB SPL
Microphone pickup head: condenser
Power supply: 2 (1.5V) AA type alkaline batterie
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