008B Product Introduction:
Yingmi 008B is a professional multi-party intercom tour guide system designed for interactive voice transmission. Featuring 23 adjustable channels, 250m long-distance communication, and 12-hour long battery life, it supports two-way intercom (visitors can ask questions directly). With strong anti-interference via UHF 746-828 MHz frequency and digital noise reduction, it’s ideal for conferences, museums, corporate visits, and scenic tours, trusted by over 4,000 global clients.
Product Parameters (Specification):
Transmitter (008B-T)
| Parameter |
Details |
| Carrier Frequency |
UHF 746-828 MHz |
| Channel Number |
23 CH (Adjustable 0-23) |
| Communication Range |
≤ 250 meters |
| Charging Time |
2.5 hours |
| Weight |
100g |
| Dimension |
183mm(L)×65mm(W)×32mm(H) |
| Working Time |
≥ 12 hours |
| Audio Interface |
3.5mm microphone/audio jack |
| Display |
Full-function LCD (channel, volume, battery, signal) |
| Transmission Power |
10mW (Health-friendly) |

Receiver (008B-R, Ear-mounted)
| Parameter |
Details |
| Carrier Frequency |
UHF 746-828 MHz |
| Channel Number |
23 CH (Adjustable 0-23) |
| Communication Range |
≤ 150 meters |
| Charging Time |
2.5 hours |
| Weight |
100g |
| Dimension |
183mm(L)×65mm(W)×32mm(H) |
| Working Time |
≥ 12 hours |
| Volume Control |
0-9 levels (adjustable) |
| Intercom Function |
Supports two-way communication (visitor questioning) |

Product Feature and Application:
Core Features
- Multi-party Intercom Interaction: Host can speak directly; sub-units press the talk key to gain the right to speak and ask questions, enabling real-time two-way communication.
- Strong Anti-interference: Adopts advanced modulation technology + UHF 746-828 MHz frequency, resisting interference from mobile phones/WiFi/industrial electromagnetic environments.
- 12-Hour Long Battery Life: ≥12 hours of continuous use per 2.5-hour charge, meeting all-day large-scale events or multi-session training needs.
- 23 Channels for Multi-team Use: Supports up to 23 parallel teams without cross-talk, suitable for crowded scenarios like conferences and scenic spots.
- Digital Noise Reduction: Advanced digital sound pickup technology filters environmental noise, ensuring clear audio in noisy workshops or exhibition halls.
- Flexible Audio Settings: Microphone/audio input mode (0-6 levels) and volume (0-9 levels) adjustable, adapting to different microphones and usage habits.
- Easy Operation: LCD display for real-time status; one-key lock/unlock (long-press Lock for 3s); channel adjustment via volume keys after unlocking.
- Batch Charging & Storage: Contact charging box enables fast batch charging; aluminum storage box with EVA grooves protects devices during transport.
- Wide Compatibility: Supports all current audio formats; compatible with handheld/headband/lavalier microphones or external audio sources.
Application Scenarios
- Large-scale conferences, multi-language simultaneous interpretation
- Museums, art exhibitions, and scenic spot guided tours
- Corporate factory visits, production environment tours
- Government/VIP receptions and high-end business visits
- Schools, training institutions (interactive teaching)
- Cruise ship sightseeing and theme park tours


Product Details:
- Transmitter: Full-function LCD screen shows channel, volume, battery, and signal; 3.5mm audio jack for versatile input; direct speaking without extra keys; one-key mute (long-press SET for "GROP").
- Receiver: Non-in-ear design for comfort; built-in antenna avoids external inconvenience; talk key for gaining the right to speak ;volume/channel adjustable via dedicated keys.
- Charging Solutions: Contact charging box with intelligent charging mode (trickle → constant current → constant voltage) extends battery life; USB charger supports small-batch portable charging.
- Storage Box: All-aluminum frame + EVA shock-absorbing cotton, independent compartments for each device; moisture-proof and shockproof, suitable for global transportation.
- Operation Logic: Host and sub-units must match channels (1-23) to communicate; sub-units need to press the talk key first to speak, ensuring orderly interaction.

Packing and Shipping:
Packing
Packaging Details: Standard export packing. One unit with one independent box.
Shipping
DHL/FedEx/UPS/EMS: 3-7 workdays

FAQ:
Q1: How many receivers can be used with a transmitter?
A1: Number of connected receivers no limited
Q2: How many channels does the 008B system support?
A2: 23 adjustable channels (0-23), supporting up to 23 parallel teams without mutual interference.
Q3: What is the communication range of the transmitter and receiver?
A3: Transmitter: ≤250m (unobstructed); Receiver: ≤150m, sufficient for most indoor/outdoor scenarios like large conferences and scenic spots.
Q4: How long does it take to charge, and how long can it be used?
A4: Charging time: 2.5 hours; Working time: ≥12 hours, meeting full-day event needs without mid-charge.
Q5: Is the 008B system suitable for overseas use?
A5: Yes. It uses globally universal UHF frequencies, meets CE/RoHS standards, and provides complete customs clearance documents for smooth export.