Adastra: 952.412UK, Handheld PA System, 25W Output, VHF Wireless Neckband Mic, Bluetooth, USB, FM Radio
About this product
The H25B is a fully integrated PA unit in an ergonomic ABS handheld housing. Power can be supplied from mains or the internal rechargeable battery to deliver up to 25W output. Hands-free vocal address is made easy and convenient with the supplied VHF wireless neckband system. Built-in Bluetooth receiver and USB media player provide background music playback options, including an FM radio tuner function.
- Mains or battery operation
- VHF neckband microphone system
- Bluetooth Receiver
- Internal USB audio player
- FM radio tuner
Applications include demonstrations, speech reinforcement in educational scenarios and mobile public address.
Specifications
Specifications
Sound Pressure Level (SPL) | 80 dB |
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Signal-to-Noise Ratio (S/N) | >75 dB |
Audio Source | USB player, FM tuner, Bluetooth receiver |
Carrier Frequency | 174.1 MHz |
Frequency Response | 100 Hz - 12 kHz |
Weight of Main Unit | 2.74 kg |
Max Output Power | 25 W |
VHF Tuning Stability | 0.005% quartz crystal locked |
Weight of VHF Beltpack | 76 g (no battery) |
VHF Operating Distance | 35 m (max.) |
Power Supply (Main Unit) | 230 V AC, 50 Hz or internal rechargeable battery |
Battery Life (Voice) | 7 hours max. |
Battery Life (Signal) | 2 hours max. |
Battery Type (Beltpack Transmitter) | 9 V DC PP3 |
H25B VHF/USB/FM/BT Portable PA System features

Adastra: 952.412UK, Handheld PA System, 25W Output, VHF Wireless Neckband Mic, Bluetooth, USB, FM Radio