2.4GHz Noise-Cancelling Tour Guide System
Range: 50-300m
Frequency: 2.4GHz
Noise Reduction: Built-in
Bluetooth: Supported
Charging: USB Type-C
Hefei Humantek Co., Ltd. is one of the leading manufacturers and suppliers of 2.4ghz noise-cancelling tour guide system in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to buy bulk high quality 2.4ghz noise-cancelling tour guide system from our factory.
Product Introduction
Powered by 2.4GHz digital transmission and built-in active noise cancellation, the B7-1 tour guide system delivers stable, crystal-clear audio across a 50–300 meter range. Its ear-hook receiver stays lightweight for all-day wear, while the handheld transmitter offers a locking power switch and one-touch mute for guides working in busy or noisy environments. Optimized for factory tours, guided visits, and group briefings, it reduces background noise disruption and keeps every listener on a clear signal from start to finish.
Product Features
Active Noise Cancellation
A dedicated NC mode on the transmitter's single-directional microphone suppresses ambient noise, keeping the guide's voice clear near traffic, machinery, or crowded indoor spaces.
Three-Position Locking Power Switch
The transmitter cycles through Power On, Key Lock, and Power Off. Locking the keys disables all functions except mute, preventing accidental channel changes or shutdowns mid-tour.
One-Click Pairing
Receivers pair to a transmitter channel with a long press, confirmed by an on-screen "Pairing in progress" indicator and a steady green light once connected.
Independent Bluetooth Connectivity
Bluetooth toggles on or off separately from the 2.4GHz link, letting operators connect a mobile source when needed or leave it off to extend battery life.
Product specification
| Specification | B7-1 Transmitter | B7-1 Receiver |
|---|---|---|
| Model | B7-1-T | B7-2-R |
| Working Frequency | 2400–2483.5 MHz | 2400–2483.5 MHz |
| Transmission Range | 50–300m (Open Space) | 50–300m (Open Space) |
| Battery Capacity | 3000mAh, 3.7V | 400mAh, 3.7V |
| Continuous Working Time | Approx. 20 Hours | Approx. 30 Hours |
| Charging | Charging base / USB Type-C, 0.8A, full charge in 4 hours | Charging station / USB Type-C, 190mA, full charge in 2.5 hours |
| Operating Temperature | -20°C to +70°C | -10°C to +55°C |
| Dimensions | 114.7 × 55.3 × 20.8 mm | 60 × 25 × 12 mm (without ear hook) |
| Net Weight | - | 21.1g (including ear hook) |
| Microphone | Single-directional | - |
Products Details
Built-In Noise Cancellation for Real Working Conditions
The transmitter's NC mode filters background noise picked up by its single-directional microphone, keeping voice audio intelligible on factory floors, near roadways, or in crowded galleries without asking the guide to raise their voice.
01
Locked-Key Operation for Uninterrupted Tours
The three-position switch - Power On, Key Lock, Power Off - protects an active session from accidental key presses. In Lock mode, only the mute function remains active, so channels and power state stay untouched inside a pocket or bag.
02
All-Day Battery Life
The transmitter's 3000mAh battery supports approximately 20 hours of continuous use, while the receiver's 400mAh cell runs up to 30 hours, together covering a full day of touring or inspection work without a mid-day recharge.
03
Lightweight, Wearable Receiver
At 21.1g including the ear hook, the receiver stays comfortable through extended wear, while the handheld transmitter's LCD screen displays channel, battery, Bluetooth, and signal status at a glance.
04
Application Scenarios
Factory & Plant Tours
Noise cancellation and locked-key operation keep tours running clearly past active production equipment.
Corporate Site Inspections
Long battery life supports delegations and audit teams moving across multiple buildings on a single charge.
Training & Briefing Sessions
The mute function lets a presenter step away from the mic momentarily without cutting the group's audio feed.
Museums & Group Tours
Stable short-to-mid range transmission keeps groups connected while preserving a quiet visiting atmosphere.
OEM & ODM Customization Service
We offer comprehensive OEM and ODM one-stop solutions to match your brand and functional requirements:
Custom logo printing and product appearance design
Multi-language user manuals and customized packaging
Hardware function customization and firmware parameter tuning
Exclusive product development for niche application scenarios
FAQs
Q: Can the B7-1 be customized for OEM orders?
A: Yes. Casing color, logo printing, packaging, and channel configuration can be adjusted for bulk orders. Contact our sales team with your target quantities for a customization quote.
Q: How many receivers can pair to one transmitter?
A: The B7-1 supports group pairing across multiple receivers on the same channel, suitable for tour groups and inspection teams of varying sizes. Confirm the exact group capacity needed with sales for your order.
Q: Does the noise cancellation affect voice clarity indoors?
A: The NC mode is designed to suppress background noise without distorting the speaker's voice, and it can be switched off for quieter indoor environments where it isn't needed.
Q: Do you support sample orders for testing?
A: Yes, we provide sample orders for performance evaluation. Please contact our sales team for sample pricing and lead time details.
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