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Small black USB-C dongle, rectangular with rounded edges, matte finish

HP

HP 786C5AA BT700 Bluetooth 5.1 USB-C transmitter

SKU CH-9JCC-P6S33 MPN 786C5AA

Bluetooth 5.1 USB-C transmitter adds wireless headset audio up to 164 ft to the OMEN 40L GT21-1026nd

  • Wireless TypeBluetooth
  • Bluetooth 5.1 delivers stable wireless audio up to 164 ft
  • USB-C connector plugs directly into OMEN 40L GT21-1026nd
  • Compact 0.6 x 0.8 x 0.3 in design stays out of the way
  • Supports HSP A2DP AVRCP profiles for calls and music
  • Purpose-built transmitter pairs instantly with compatible headsets

Purpose-built transmitter

The HP 786C5AA BT700 is a Bluetooth 5.1 USB-C transmitter designed to add wireless audio capability to a compatible headset. It targets users of the OMEN 40L GT21-1026nd desktop who want a native Bluetooth link without installing an internal card. The adapter supports HSP, A2DP and AVRCP profiles for voice and stereo streaming.

Build integration

The dongle plugs directly into a USB Type-C port and draws power from the host, so no external supply or driver disc is required. Its 0.6 in by 0.8 in by 0.3 in footprint leaves adjacent ports unobstructed and frees the motherboard's internal slots for other expansion cards. Pairing is handled through the operating system's standard Bluetooth stack.

Upgrade context

The device replaces a missing or limited onboard Bluetooth radio on the OMEN 40L platform, extending wireless range to 164 ft. The jump is worthwhile when the system lacks Bluetooth 5.1 or when the integrated module cannot maintain a stable connection to a headset. It does not add Bluetooth to machines without a USB-C port or to headsets that lack Bluetooth support.

Highlights

  • Bluetooth 5.1 delivers stable wireless audio up to 164 ft
  • USB-C connector plugs directly into OMEN 40L GT21-1026nd
  • Compact 0.6 x 0.8 x 0.3 in design stays out of the way
  • Supports HSP A2DP AVRCP profiles for calls and music
  • Purpose-built transmitter pairs instantly with compatible headsets

Specifications

Wireless TypeBluetooth
Shipping weight1.36 kg
Package size20 × 15 × 8 mm

Questions about this item

How far does the BT700 Bluetooth 5.1 signal reach before it drops?

The transmitter maintains a connection up to 164 ft in open space, so you can move around a large room without losing audio.

Does the adapter get warm or draw much power when used continuously?

It draws power directly from the USB-C port and stays cool during all-day use because the Bluetooth 5.1 radio is very low power.

Which USB port must my PC have for the BT700 to work?

Your computer needs a free USB Type-C port; the dongle plugs straight in with no extra cables or drivers required.

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