High-Power Wall-Mounted IP Speaker with 2x30W Amplifier & 2.4G Wireless Mic
2x30W Digital Amplifier • 3.4" LCD Display • USB/MP3 Playback • 100V Backup Input • Master/Standby Redundancy
T-7705BM 2x30W
The highest power wall-mount IP speaker in the T-7705 series. The T-7705BM delivers 2x30W of digital amplification, making it ideal for larger classrooms, meeting rooms, and spaces requiring higher volume levels. Includes built-in 2.4GHz wireless microphone receiver, 3.4" LCD display, USB/MP3 playback, and 100V analog backup for life-safety redundancy.
| Model Number | T-7705BM |
| Product Type | High-Power Wall-Mounted IP Speaker with 2.4G Wireless Mic |
| Display | 3.4-inch LCD (Character/Graphic) |
| Amplifier Output | 2 x 30W (stereo) @ 4-8Ω |
| Wireless Microphone | 2.4GHz digital, built-in receiver |
| Wireless Mic Range | Up to 30m line-of-sight |
| Wireless Mic Battery | Rechargeable, 8+ hours |
| Network | 10/100Mbps Ethernet (RJ45) |
| Audio Protocols | TCP/IP, UDP, HTTP, RTP, RTSP |
| Audio Codecs | MP3, WAV, PCM |
| Media Playback | USB 2.0 (MP3/WAV) |
| Audio Inputs | 1 x MIC (3.5mm), 1 x AUX (RCA) |
| Backup Input | 100V constant voltage (for analog backup) |
| Redundancy | Master/Standby switch, <0.3s failover |
| Frequency Response | 80Hz – 18kHz (±3dB) |
| THD+N | < 0.1% (1kHz, 15W) |
| S/N Ratio | > 85dB |
| Power Supply | PoE (IEEE 802.3af) or DC 24V |
| Power Consumption | ≤ 15W (without speakers), ≤ 35W at full volume |
| Mounting | Wall mount (included), 86x86mm back box compatible |
| Dimensions (WxHxD) | 180 x 120 x 45 mm |
| Weight | 1.3 kg |
| Operating Temperature | 0°C – 40°C |
| Humidity | 10% – 90% non-condensing |
| Color | White / Black (optional) |
| Certifications | CE, FCC, RoHS |
The T-7705BM features a 2x30W digital amplifier – the highest power in the T-7705 wall-mounted series. Ideal for larger classrooms, lecture halls, and spaces requiring higher volume levels or driving less efficient speakers. The amplifier delivers clean, distortion-free audio even at maximum output.
The T-7705BM is the high-power member of the T-7705 wall-mounted IP speaker family, delivering 2x30W of digital amplification. It's designed for larger spaces where standard 20W speakers may not provide sufficient volume or headroom.
30W per Channel – More Power, More Coverage: With 50% more power than the T-7705B/BG models, the T-7705BM can fill larger rooms with clear, intelligible audio. Perfect for:
Built-in 2.4G Wireless Mic: The included handheld microphone (or optional headset/lavalier) provides hands-free operation for teachers, trainers, and presenters. The microphone automatically pairs when powered on within range.
100V Analog Backup: Like other T-7705 series models, this includes a 100V constant voltage backup input. If the network fails, the unit automatically switches to analog paging, ensuring life-safety announcements are never missed.
Master/Standby Redundancy: The built-in master/standby switch enables fast failover (<0.3s) when paired with a second unit, ensuring continuous operation even if the primary amplifier fails.
50% more power than standard models. Drives larger spaces and less efficient speakers with ease.
Built-in receiver, automatic pairing. Handheld or headset options. Up to 30m range.
Automatic switch to analog 100V paging during network failure. Ensures life-safety announcements.
<0.3s automatic switchover to backup unit. Hot-standby mode keeps audio synchronized.
| Parameter | Specification |
|---|---|
| Frequency Band | 2.4GHz ISM (license-free) |
| Modulation | Digital GFSK |
| Audio Bandwidth | 50Hz – 15kHz |
| Range | Up to 30m (line of sight) |
| Battery Type | Built-in rechargeable Li-ion |
| Battery Life | 8+ hours continuous use |
| Charging | Micro-USB (included) |
| Microphone Types | Handheld, headset, lavalier (optional) |
| Simultaneous Mics | Up to 4 per receiver |
Included: Handheld mic
Optional: Headset, Lavalier
The T-7705BM's 2x30W amplifier requires more power than standard models. When using PoE (802.3af), ensure sufficient power budget – the unit draws up to 15W idle and 35W at full volume. For maximum output, the included 24V DC power adapter is recommended. PoE operation is suitable for typical background music and speech levels.
| Model | Display | Amp Power | 2.4G Mic | Bluetooth | 100V Backup |
|---|---|---|---|---|---|
| T-7705S | 3.4" LCD | 2x20W | No | No | Yes |
| T-7705B | 3.4" LCD | 2x20W | Yes | No | Yes |
| T-7705BG | 3.4" LCD | 2x20W | Yes | Yes | Yes |
| T-7705BM | 3.4" LCD | 2x30W | Yes | No | Yes |
| T-7705A | 4.3" TFT | 2x30W | Optional | Yes | No |
| Model | Amplifier Power | Relative Loudness | Ideal Room Size |
|---|---|---|---|
| T-7705S/B/BG | 2x20W | Reference | Small classrooms, meeting rooms (up to 50m²) |
| T-7705BM | 2x30W | +50% power, +3dB | Large classrooms, lecture halls (up to 100m²) |
For maximum 30W per channel output, use the included 24V DC power adapter. When using PoE (802.3af), available power is limited to approximately 12-15W per channel due to PoE budget constraints. This is still sufficient for most speech and background music applications. For full output, always use the DC adapter.
The T-7705BM ships with a 2.4GHz wireless handheld microphone. Optional headset and lavalier microphones are available separately. Up to 4 microphones can be used simultaneously with one receiver – ideal for panel discussions or multiple presenters.
Server → PoE Switch → T-7705BM (wall-mounted) → 2x 30W ceiling speakers
Teacher uses included wireless handheld mic (or optional headset). USB drive with lesson audio. Network provides school announcements. 100V backup from analog paging amp ensures emergency announcements during network outage. DC adapter used for full 30W output.