Anhui YingMi Smart. CO., LTD.
| Packaging Details | packed in carton box |
| Transmission range | 50–300 meters |
| Delivery Time | 5-8 working days |
| Payment Terms | L/C, paypal |
| Working frequency | 2400–2483.5 MHz |
| Model Number | B7-1 |
| Place of Origin | China |
| Brand Name | Yingmi |
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Product Specification
| Packaging Details | packed in carton box | Transmission range | 50–300 meters |
| Delivery Time | 5-8 working days | Payment Terms | L/C, paypal |
| Working frequency | 2400–2483.5 MHz | Model Number | B7-1 |
| Place of Origin | China | Brand Name | Yingmi |
A guide presses power, a receiver locks on within seconds, and the group is moving — no manual channel-matching, no setup delay standing between arrival and the first stop on the route.
Most delays before a guided tour starts have nothing to do with the route — they come from getting a stack of receivers matched to the right channel. The B7-1 solves that step directly: a long press on the receiver's pairing button starts the connection, the LCD confirms "Pairing in progress," and a steady green light signals it's locked to the transmitter. What used to take a briefing now takes a few seconds per unit.
Built on a 2.4GHz digital link with a working range of 50 to 300 meters, the system holds a stable connection whether the group is moving through a single hall or spread across an outdoor site.
A single long press connects a receiver to its channel, with on-screen confirmation and a solid green indicator once the link is set — no code entry, no menu navigation.
The transmitter's single-directional microphone runs an NC mode that suppresses ambient sound, so the paired connection stays clear even in busy or noisy settings.
A three-position switch — On, Key Lock, Off — keeps a paired session from being disrupted by accidental button presses once the tour is underway.
20 hours from the transmitter and 30 hours from the receiver mean a paired set stays connected through a full day without a mid-tour recharge.
| Parameter | Value |
|---|---|
| Working frequency | 2400–2483.5 MHz |
| Transmission range | 50–300 meters |
| Battery life | 20 hours |
| Battery capacity | 3000mAh, 3.7V |
| Charging | Charging base or USB Type-C, 0.8A, full charge in 4 hours |
| Operating temperature | -20°C to +70°C |
| Microphone | Single-directional |
| Dimensions | 114.7mm (L) × 55.3mm (W) × 20.8mm (H) |
| Parameter | Value |
|---|---|
| Working frequency | 2400–2483.5 MHz |
| Communication range | 50–300 meters (open space) |
| Battery life | Approx. 30 hours |
| Battery capacity | 400mAh, 3.7V |
| Charging | Charging station or USB Type-C, 190mA, full charge in 2.5 hours |
| Operating temperature | -10°C to +55°C |
| Weight | 21.1g (including ear hook) |
| Dimensions | 60mm (L) × 25mm (W) × 12mm (H), without ear hook |
Fast pairing gets a group of visitors listening within moments of arrival, without the wait that usually opens a tour.
Delegations moving between buildings can be re-paired quickly if a receiver drops or a new visitor joins mid-visit.
Large rooms full of attendees can connect receivers in sequence without pulling a technician in to manage the process.
Noise cancellation and a locked-key transmitter keep the group connected past running equipment and workshop noise.
A 300-meter open-space range covers groups spread across outdoor routes without losing the signal between stops.
Booth staff can pair a fresh receiver to a visiting buyer in seconds rather than pausing a walkthrough to set up equipment.
Bulk orders on the B7-1 can go beyond a standard configuration. Casing, channel setup, and documentation can all be adjusted before production starts, so the units that arrive already match how your team plans to deploy them.
A long press on the pairing button typically connects a receiver within a few seconds, confirmed by the on-screen status and a solid green light.
Receivers retain their paired channel, so a power cycle during a tour doesn't require re-pairing unless the channel itself is changed.
Yes. NC mode is a toggle, so it can be switched off in quieter settings where it isn't needed.
Casing color, logo printing, and packaging can be adjusted for bulk orders. Contact sales with your target volume for a customization quote.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2007
Employee Number:
100~200
Ecer Certification：
Site Member
With 19 years of specialized industry expertise dating back to 2007, Yingmi has partnered with museums, scenic areas, heritage sites, and tour operators to design and deliver audio guide programs that work — for visitors, for staff, and for the long run. We bring the hardware, the service infr... With 19 years of specialized industry expertise dating back to 2007, Yingmi has partnered with museums, scenic areas, heritage sites, and tour operators to design and deliver audio guide programs that work — for visitors, for staff, and for the long run. We bring the hardware, the service infr...
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