Kithouse K380 Rechargeable 2.4GHz Dual Wireless Microphone With Receiver - No need to set! No need to buy batteries! Just plug and use! How to use Kithouse K380 Rechargeable 2.4G Dual Wireless Microphone with Speaker? 1)Power on mic/receiver, they will connect each other automatically though 2.4G technology 2)Plug the receiver into the Speaker with 1/4"(6.35mm)port, now you can use the mic How To Pair/Reset K380S Microphone with Receiver? 1. Power off both Mic & Receiver. Firstly, hold press the PAIR button in Mic tail, then hold press Mic's Power Key until you see"PAIR" flashes. This means Mic has entered Pairing mode. Another mic is the same procedure. 2. Long press Receiver's Power Key, you will notice RX MIC A/B Indicator will quickly flash 3 times then out. This means RX has detected Mic A/B. 3. Now short press Mic's Power Key to comfirm pairing. If Receiver's RX MIC A/B Indicator always on, that means Mic A/B & Receiver pairing successful. Otherwise, repeat the whole pairing process. Technical Parameters: Frequency Band: UHF Work Channels: 10 UHF channels(CH01-CH10) Frequency Response: 50Hz - 18kHz SNR: >70dB Distortion: <0.5% Latency: <3ms UHF Microphone & Receiver Range: =50ft Indoor(15m) Up to 100ft Outdoor Microphone Battery: 2 AA battery Receiver Battery: Built-in lithium battery (can be charged by a DC5V mobile phone power adapter) Microphone Working Time: About 40 Hours(Full Charged) Receiver Working Time: About 4 Hours(Full Charged) Working distance: >20 meter Simultaneously Using Max Sets: 10 sets at max(Each Set Using In Different Channel) Package List: 1 * K380 Dual Wireless Microphone With Receiver 1 * Data cable 1 * Dual USB Charging Port 1 * User Manual2*MicrophoneIf you have any problem about our microphone, please must contact with us,then leave a message to us. Your problems and suggestions is the key for us to improve. Each Microphone with 1 x cusp 1500mAh 18650 rechargeable battery(Not flat top 18650 battery); Receiver with Built-in 800mAh rechargeable Lithium battery. When full charged, microphone working time about 8 Hours, receiver working time about 4 Hours; Dual USB Charging Port for Charging. Support 10 sets at max for Simultaneously Using(Each Set Using In Different Channel). Notice: If Microphone & Receiver can’t connect with each other, they need Pairing to Reset. 1/4"(6.35mm) Receiver Input; Microphone & Receiver use UHF Connection Technology, Indoor range >50ft(Outdoor range >100ft); Frequency Response 50Hz-18kHz; SNR >70dB; Distortion <0.5%; Latency <3ms; 10 UHF Work channels(CH01-CH10); 2 x Microphone Windscreen !. The Dual UHF Wireless Microphone - Rechargeable UHF Dual Wireless Microphone With Receiver System. Both microphones & receiver can be rechargeable. No need to set! No need to buy batteries! Just plug and use! Perfect for Karaoke, Speech, Meeting, Performance, Indoor or Outdoor. Design for Outdoor Karaoke Speaker, PA Speaker System, Power Amplifier, etc(Notice: Not For Phone, PC, Camera);.