EXMAX EX831 - 1 Microphone FM + EX102 - FM

Features: FM(0.1MHz spacing between channels) One transmitter can work with multiple receivers within the operating range Individual volume control on each receiver Both transmitter and receiver use LCD-display to indicate frequency,channel,battery,level status Specifications Transmitter: Model: EX831TransmitterBlack (adjustable) Frequency increase: 0.1MHz Frequency stability: ±10PPM Frequency response: 50Hz-1500Hz Signal to noise radio: <60dB Transmission power: 0.01/10/100/200mW Reference distance: 50/60/70/80M Working hours: 8/6/5/3h Power: BL-5C 3.7V 1000mAh Charging time: about 5 hours Support TF Card: only support MP3 format Size: 80x58x18mm/3.1x2.3x0.7in Receiver: Model: EX102ReceiverWhite Frequency Range: Sensitivity: <3.5uV Signal to noise ratio: 45db Stereo separation: 32dB Power supply: 2 x AAA batteries(not included) Earphone jack: 3.5mm Tuning increase: 0.1MHz Built-in speaker: No Material: ABS Plastic Size: 92x53x13mm/3.6x2.1x0.5in Suitbale For Guided Tours Factories, Museums, Tourist Attractions, Zoos & Theme Parks, Cruise Ships & Buses, Schools, Meetings & Lectures, Employee & Dealers Training, Hotels and Resorts, Special Events.Educational Institutions, Corporate Meetings, Training and Seminars, Theaters, Governmental Agencies, Houses of Worship, Conventions and Auditoriums. Package Contents 1 x EX831 FM Transmitter Black(Battery Included) 10x EX102 FM radio Receiver White (Battery NOT Included) 1 x USB charging cable 1 x Microphone 1 x Belt clip 1 x Audio Cable (1.2 meter) 1 x BL-5C lithium battery 10x In-ear Stereo Earphone 10x Lanyard 10x English User Manual