AudioRoot eSmart DUO

eSMART DUO – Compact Dual Battery Power Distribution System

The AudioRoot eSMART DUO is an ultra-compact and lightweight power distribution system designed specifically for location sound recording. Positioned between the eSMART BG-DH MKII and the eSMART TRIO, it is optimized for use in sound bags and mobile setups.

With two smart battery inputs, six Hirose™-compatible outputs, and a bright color OLED screen, the DUO delivers advanced monitoring and reliable power to mixers, recorders, and wireless systems. It supports hot-swappable batteries and AC input via USB-C PD (optional adapter required), offering maximum flexibility on set.

Main Features

• 2 smart battery inputs (modular design)
• 6 Hirose™-compatible DC outputs:
  • 4 main outputs
  • 2 auxiliary outputs (1 supports smBUS data aggregation)
• 96×64 pixel color OLED display
• Real-time display of:
  • Remaining capacity (%)
  • Estimated runtime
  • Voltage, current, and power
  • Temperature and cycle count
  • Serial number and individual cell voltages
• 4 selectable display layouts: combined, individual, legacy, auto
• Configurable battery capacity alarm threshold
• Green LED-lit pushbutton for intuitive navigation
• 2 locking toggle switches for output control
• Micro USB port (internal) for firmware updates
• Compatible with USB-C PD via ePSB USB-C to TA4 adapter (available Q3 2025)
• User-replaceable cables and connectors

Cable Options (interchangeable adapters)

• DUO-CAB-TT: 2 × TA4M connectors (8 cm, pre-installed)
• DUO-CAB-CC: 2 × smart battery cups (30 cm)
• DUO-CAB-TC: Hybrid: 1 × TA4M + 1 × smart battery cup (8 cm + 30 cm)

Compatibility

• Exclusively compatible with AUDIOROOT smart batteries
• Supported models: Li-48neo, Li-96neo, Li-49Wh, Li-98Wh, LiFE-256Wh, LiFE-576Wh, BC1150, BH2

Dimensions & Weight

• Size: 63.5 × 32 × 80 mm (excluding belt clip)
• Weight: 170 g (with 2 × TA4M inputs)
• Belt clip included

Note: The eSMART DUO is exclusively designed for use with smart batteries and does not support standard batteries.

Video

Watch the video below for a walkthrough of the eSMART DUO's features, controls, and connection options: