SK750 Wireless Lavalier Microphone Set Multi-function UHF Transmitter Receiver Mic System Compatible with Smartphone Laptop DSLR for Outdoor Interview Live-stream Recording UHF Wireless Microphone: UHF has a longer range and better propagation outdoors and through solid objects like a human body The wireless microphone system adopts UHF ISM global unlimited frequency band transmission The wireless microphone system can automatically scan channels and pair them within 3 seconds It can obtain a stable,anti-interference,and adjustment-free transmission of strong signals with an audio range of up to 50m (164ft). No lag and signal loss SK750 wireless lavalier microphone is compatible with DSLR,Camcorder,Smartphone,for iPhone (Lightning adapter and Type-C adapter not included) The wireless microphone system is widely used for YouTube Live-stream,Vlog recording,interviews,program hosting,podcast,presentation,church,weddings,etc. No app and driver are needed Specifications: Transmission frequency band: 610.50-669.50MHz Audio frequency response: 40Hz~18KHz Dynamic range: 90dB (circuit performance) SNR: 90dB (circuit performance) Microphone sensitivity: -30dB (built-in microphone) Frequency range: 40-180000Hz Pairing type: automatic Effective working distance: 20m (with block),50m (barrier-free) Working temperature: -15°C to +65°C Receiver: Transmission frequency band: 610.50-669.50MHz Transmission mode: frequency hopping/digital FSK Receiving sensitivity: -95~-71dBm Antenna method: Built-in F-type antenna Display mode: Multi-function LED display mode Power requirements: Built-in 3.7V lithium battery 450mah (charged via Type-C interface standard USB 5V) Battery life: > 6 hours Output connector: 3.5 mm TRS Operating temperature: -5°C to +50°C Size: 47 x 47 x 15mm Weight: 30g Transmitter: Transmission frequency band: 610.50-669.50MHz Modulation type: frequency hopping/digital FSK Transmit power: 10dBm Antenna method: Built-in F-type antenna Polar coordinates: all directions (built-in microphone and external lavalier) Display mode: multi-function LED display mode Power requirements: Built-in 3.7V lithium battery 450mAh (charged via Type-C interface standard USB 5V) Battery life: > 3 hours Input connector: 3.5 mm TRS Operating temperature: -5°C to +50°C Dimensions: 47 x 47 x 15mm Weight: 30g Package included: 1 x Receiver 1 x Transmitter 2 x Audio Cable 1 x Charging Cable 1 x Microphone Cable 1 x English and Chinese Manual Other items not included