PockeTalker Ultra System with EAR 013 & HED 021

The Williams AV Pocketalker Ultra System is a compact personal amplification solution that emphasizes sounds closest to the listener while reducing background noise. This PKT D1 EH configuration includes the EAR 013 single mini earphone and HED 021 lightweight folding mono headphone, providing two listening options for different situations. External volume and tone controls keep essential adjustments directly accessible.

Ideal Use Cases

The Pocketalker Ultra is designed for one-on-one conversations and small-group listening. Its included TV listening extension cord extends the microphone to 12 feet, allowing the microphone to be positioned closer to a television audio source while the listener keeps the amplifier nearby. The included belt clip supports belt-worn use, while the lanyard allows the unit to be worn around the neck. These options make the system adaptable to seated conversations, group settings, and TV listening without permanent installation.

Why Choose This Model

This configuration combines the EAR 013 single mini earphone with the HED 021 lightweight headphone. The EAR 013 offers a compact 9 g listening option with a 13 mm driver, while the HED 021 provides a folding mono design with a 30 mm driver. Both have 39-inch cords, 32-ohm impedance, and a frequency range of 20 Hz to 20 kHz. The system also uses an omnidirectional electret microphone with a foam windscreen and a 3.5 mm mono plug.

Separate rotary controls address volume and tonal balance. The volume control incorporates the power on-off switch, while the tone control allows the listener to optimize the response. This direct control arrangement avoids menus or external configuration equipment.

Installation and Integration

Operation requires two 1.5 V AAA alkaline batteries. Connect the microphone assembly to the 3.5 mm mono microphone connection and attach either the EAR 013 or HED 021 to the 3.5 mm mono headphone jack. The microphone jack uses a gold-plated mini plug, while the headphone jack uses a nickel-plated mini plug. The microphone does not require phantom power and has a standard operating range of 2 to 10 V DC.

For TV listening, the extension cord increases the microphone reach to 12 feet. For portable use, attach the belt clip or use the lanyard. The amplifier measures 3.38 inches long by 2.23 inches wide by 0.88 inches thick, excluding the belt clip and microphone assembly. Its silver-gray enclosure is molded from ABS and polycarbonate.

Performance Highlights

The amplifier provides up to 50 mW of output into 16 ohms. Automatic gain control limits the maximum output level, and rated distortion is 2% THD maximum. The three tone positions provide defined response adjustments: the high setting supplies an 11 dB boost at 5 kHz and an 8 dB cut at 400 Hz; the middle setting provides no boost at 5 kHz and a 4 dB cut at 400 Hz; and the low setting applies a 3 dB cut at 5 kHz with a 4 dB boost at 400 Hz.

The EAR 013 has a sensitivity rating of 128 dB at 1 kHz and a maximum input power of 5 mV. Its replacement earpad is the EAR 015. The HED 021 accepts up to 100 mW, and its replacement pads are available as the HED 023 pair. Published HED 021 measurements list SSPL90 values of 124.3 dB, 124.8 dB, and 124.8 dB across the high, middle, and low tone settings.

Typical battery life is rated at up to 200 hours. A red light on the top panel flashes to indicate a low battery, giving the listener a visible prompt before battery replacement.

What Makes It Different

The PKT D1 EH package brings together a compact single earphone and a folding lightweight headphone rather than limiting the listener to one format. It also combines close-source amplification, background-noise reduction, adjustable tone response, a wearable enclosure, and a microphone extension for TV use. The product carries CE, RoHS, and WEEE approvals. Warranty coverage is five years for parts and labor, with accessories covered for 90 days.

Final Assessment

The Pocketalker Ultra PKT D1 EH is a focused personal listening system for conversations, small groups, and TV audio. Its two included listening options, omnidirectional electret microphone, external rotary controls, 50 mW maximum output, and long typical battery life provide a clearly specified combination of portability and direct operation. The belt clip, lanyard, and 12-foot TV listening extension cord complete a package designed for flexible everyday placement and use.