Audibax Missouri Free Head Dual UHF - Dual Wireless Headset System with Rechargeable Receiver (676–697 MHz)

Audibax Missouri Free Head Dual UHF - Dual Wireless Headset System with Rechargeable Receiver (676–697 MHz)

The Audibax Missouri Free Head Dual UHF is a dual headset microphone system that combines 24-bit/48kHz digital UHF transmission with a USB- rechargeable receiver to deliver clear, stable, and interference-free audio. Designed for trainers, entertainers, fitness instructors, events, and small venues, its portable design eliminates the need for power outlets: the receiver has an integrated lithium battery, and each transmitter pack runs on AA batteries, maintaining mobility and ease of use.

It operates in the 676–697 MHz range and allows up to 30 simultaneous sets (with different frequencies), with an effective range of 30 to 50 meters . The system uses frequency hopping and ID pairing to improve crosstalk immunity. The receiver's audio output is a 6.35 mm jack ; simply connect it to your speaker or mixer, turn on the transmitters, and pair them to begin working. The LED display shows the selected frequency and includes battery and overload protection indicators.

Main features

• Dual system: includes 2 headset microphones with bodypack + 1 rechargeable receiver.
• UHF band: 676–697 MHz with 24-bit/48 kHz digital transmission.
• Signal stability: frequency hopping and ID pairing to minimize interference.
• Autonomy: receiver 6–8 h (lithium battery); transmitters up to 30 h with alkaline AA batteries.
• Range: 30–50 m under typical conditions.
• Simultaneous use: up to 30 sets with different frequencies.
• Interface: LED display with frequency, RF status and battery; On/Off switch on transmitter.
• Quick connection: audio output via 6.35 mm jack for common speakers and tables.
• Total portability: receiver recharge via USB (compatible with power bank ).
• Construction: Durable headset microphone; Silver color; total weight 0.5 kg.

Product benefits

• Real mobility without network cables: battery-powered receiver and battery-powered transmitters to assemble and operate in seconds.
• Clear and consistent voice: 24 bit/48 kHz digital conversion and robust handling against noise and interference.
• Scalability: the ability to work with multiple systems at the same event without overlaps.
• Simple operation: quick pairing, clear screen reading and power control per channel.
• Versatility: suitable for classrooms, meetings, fitness, entertainment, weddings, karaoke and performances in small spaces.

Use cases

• Training and conferences: 2 speakers or speaker + assistant with freedom of movement.
• Group classes and fitness: stable voice over background music without wires or close-up shots.
• Mobile events: operation with battery-powered portable speakers.
• Small stages: presentations, magic, entertainment and school events.

Frequently Asked Questions

• How do you connect it? Via the receiver's 6.35 mm jack output to the speaker or mixer (compatible line/mic input).
• How long does the battery last? The receiver offers 6–8 hours per charge; each battery pack, up to 30 hours with alkaline AA batteries.
• How many sets can coexist? Up to 30 sets simultaneously using different frequencies.
• What is its coverage? Between 30 and 50 m , depending on the environment and line of sight.
• Can it be recharged with a power bank ? Yes, the receiver supports USB power.

Good practices

• Frequency planning: When working with multiple sets, separate frequencies and pair each transmitter with its receiver.
• Microphone placement: position the capsule laterally 1–2 cm from the corner of the mouth to reduce pops and puffs.
• Gain management: adjusts the volume on the receiver and the mixer input to avoid clipping.
• Maintenance: Use quality AA batteries and recharge the receiver before each day.

Project description

Dual UHF (676–697 MHz) wireless system with 24-bit/48 kHz digital conversion; includes 2 headsets with beltpack and 1 USB rechargeable receiver; 6.35 mm audio jack output; range 30–50 m; up to 30 simultaneous sets; receiver 6–8 h battery life and transmitters up to 30 h (AA); LED display, On/Off switch, battery indicator and overload protection; transmitter dimensions 92 × 65 mm, receiver 64 × 31 × 15 mm; Silver color; weight 0.5 kg.