USA 
ACM-6004 Stereo On-Ear Classroom Headphones
Product Description
The ACM-6004 from Cyber Acoustics are cost-effective, full-size stereo headphones built for everyday classroom use. The on-ear design helps to block out ambient sound and features an adjustable headband and easy-to-clean leatherette earpads for comfortable, all-day wear. The large 30mm dynamic drivers offer a 20 Hz to 20 kHz frequency response, well-suited to education and general listening purposes.
The headphones offer a rugged build and a braided TuffCord with a 3.5mm mini plug connector that's compatible with a wide range of audio players, phones, and mobile devices.
| Item Type | |
| Number of Included Headphones/Receivers | |
| Number of Included Transmitters | |
| Number of Included Headsets | |
| Number of Included Transceivers | |
| Headphone | |
| Earpiece Design | On-Ear (Supra-Aural), Closed-Back |
| Earpiece Swivel | Not Specified by Manufacturer |
| Earpiece Connection / Wearing Style | Headband |
| Foldable | Not Specified by Manufacturer |
| Number of Earpieces | |
| Sound Field | |
| Earpad Size | |
| Driver Type | Dynamic |
| Number of Drivers | |
| Driver Size | 1.2" / 30 mm |
| Diaphragm | |
| Magnet Type | |
| Voice Coil | |
| Impedance | Not Specified by Manufacturer |
| Active Noise Cancellation | No |
| Controls/Microphone Location | |
| Full Remote OS Support | |
| Sensors | |
| Contact Pressure | |
| Performance | |
| Frequency Response | 20 Hz to 20 kHz (Wired) |
| Resonant Frequency | |
| Sensitivity | |
| Matching Tolerance | |
| Maximum Sound Pressure Level (SPL) | |
| Maximum Power Handling | |
| Functional Bias Voltage | |
| Electrostatic Capacitance | |
| Output Power | |
| Volume Limiting | |
| Noise Attenuation | |
| Total Harmonic Distortion (THD) | |
| SNR | |
| CMRR | |
| Channel Separation | |
| Storage Capacity | |
| Number of Mics | |
| Beamforming Support | |
| Type | |
| Diaphragm Size | |
| Mic Boom Location | |
| Pickup Pattern | |
| Noise Canceling | |
| Frequency Response | |
| Operating Voltage | |
| Sensitivity | |
| Maximum SPL | |
| Impedance | |
| SNR | |
| Distortion | |
| Equivalent Noise Level | |
| Wireless Transmission | |
| Number of RF Channels | |
| RF Bandwidth | |
| Max Systems per Setup | |
| Wireless Modulation | |
| DECT Standard | |
| Duplex Mode | |
| RF Channel Access Method | |
| Latency | |
| Speech Encoding | |
| Transmission Speed | |
| Approximate RF Sensitivity | |
| Supported Audio Codecs | |
| Bluetooth Profiles | |
| Bluetooth | |
| Bluetooth Power Class | |
| Wireless Range | |
| Frequency | |
| Transmitter Power | |
| Multipoint Support | |
| Maximum Paired Devices | |
| NFC | |
| Wireless Chipset | |
| True Wireless Pairing Method | |
| Transmitter Host Connection | |
| Encryption | |
| Wired Connectivity | |
| Audio Connector to Source | 1 x 1/8" / 3.5 mm TRS Male Straight |
| Connector Plating | |
| Adapter (Included) | None |
| Cable Design | Single-Sided, Braided |
| Audio Connector to Earpiece | Hard-Wired |
| Cable Length | |
| Cable Length | |
| Cable Color | Black |
| Cable Conductor Material | |
| Battery Type | |
| Battery Type | |
| Battery Chemistry | |
| Battery Chemistry | |
| Capacity (mAh) | |
| Runtime | |
| Runtime | |
| Quick Charging Times | |
| Recharge Time | |
| DC Input Power | |
| Wireless Charging | |
| Charging Port | |
| Charging Cable Length | |
| Number of Channels | |
| Users per System | |
| I/O Connectors | |
| Antenna | |
| Audio Decoding | |
| Number of Charging Ports | |
| AC/DC Power Adapter | |
| AC Input Power | |
| Power Consumption | |
| Additional Runtime | |
| Battery Chemistry | |
| Capacity | |
| Charging Time | |
| Charging Interface | |
| Platform Support | |
| OS Compatibility | |
| Required Hardware | |
| Internet Connection | |
| Charging Temperature | |
| Operating Temperature | |
| Storage Temperature | |
| Operating Humidity | |
| Storage Humidity | |
| Certifications | |
| Physical | |
| Color | Black |
| Water Resistance | |
| IP Rating | |
| LED Indicator | |
| Material of Construction | |
| Dimensions | |
| Weight | |
| Warranty Length | Limited 1-Year Warranty |