HappyModel BNF Bassline 2S HD 2" Micro Quad w/ Walksnail Avatar & Nano Cam - ELRS 2.4GHz UART

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Check out the HappyModel BNF Bassline HD 2S 2" Micro drone, with addition of HD Digital VTX system to this quad. Working off the Walksnail Avatar HD Mini 1S Lite Kit, expect to experience super clear and sharper images. This is a high-performance drone perfect for FPV racing and freestyle flying. The CrazyF411 ELRS flight controller comes with a built-in UART ELRS 2.4GHz receiver.

Be sure to check out all our pre-built quads, and all our Happymodel products!


  • HD Digital VTX system available
  • Walksnail HD
  • Powerful EX1103 KV11000 motors
  • Battery tray size: Maximum support for batteries with a width of approximately 17mm and a height of approximately 13mm


  • Brand Name: HappyModel
  • Item Name: Bassline Digital HD 2S toothpick FPV drone built-in Walksnail 
  • Wheelbase: 90mm
  • Size: 115mmx115mmx40mm
  • Weight: 46gram

Motor Specifications

  • Motor:Mode: EX1103 KV11000
  • Configu-ration: 9N12P
  • Stator Diamter: 11mm
  • Stator Length: 3mm
  • Shaft Diameter: Φ1.5mm
  • Motor Dimension(Dia x Len): Φ13.5mmx15.5mm
  • Weight(g): 3.8g
  • No.of Cells(Lipo): 1-2S

Prop Specifications

  • Weight: 0.88g
  • Material: PC
  • Pitch: 2.3inch
  • Props Dia: 52.17mm
  • Center Thickness: 5mm
  • Center Hole Dia: 1.5mm

Flight Controller Specifications

  • CrazyF411 ELRS flight controller built-in UART ELRS 2.4G receiver Target: CRAZYBEEF4DX
  • MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
  • Power supply:2S 6.5v~8.7v
  • Built-in 20A(each)Blheli_S 4in1 ESC(CrazyF411 ELRS)
  • Receiver: UART serial ExpressLRS 2.4G
  • Built-in voltage detection
  • Built-in current sensor

CrazyF411 ELRS AIO Built-in Onboard 4in1 ESC Specifications

  • MCU upgraded to EFM8BB21
  • Power supply: 2-4S LiPo/LiPo HV (7v/17v)
  • Currents: 20A continuous peak 25A (5 seconds)
  • Support: BLHeliSuite programmable
  • Default Factory firmware: Bluejay 0.18
  • Firmware target: F_H_40_48_v0.18
  • Default protocol: DSHOT300

Onboard UART ELRS Receiver Specifications

  • Packet Rate option: 25Hz/50Hz/150Hz/250Hz/500Hz
  • RF Frequency: 2.4GHz
  • Antenna plug: IPEX
  • Telemetry output Power: <12dBm
  • Receiver protocol: CRSF
  • Default firmware version: ExpressLRS V3.0.1

Camera Specifications

  • Model: Avatar lite camera
  • Image Sensor: 1/2.7”1nch
  • Resolution: 1080P/60fps,720P/120fps,720P/60fps
  • Ratio :16/9 4/3
  • Lens: 2.1mm
  • FOV: 170°
  • Aperture: F2.0
  • Shutter Rolling: Rolling shutter
  • Min.Illumination: 0.001Lux
  • Weight: 1.8g
  • Dimensions: 14x14x16mmVTX
  • Model Avatar: mini 1s module
  • Communication Frequency: 5.725-5.850GHz

Walksnail Specifications

  • Transmitter Power: (EIRP) FCC:<25.5dBm;CE:<14dBm;SRRC:<20dBm;
  • MIC:<25dBm
  • I/O Interface: JST1.0*6(Power in)JST0.8*4(USB)
  • Mounting Holes: 25.5x25.5mm
  • Dimensions: 30x30x6.5mm
  • Storage: 8G
  • Recording: 1080p/720p
  • Weight: 5.1g
  • Operating Temperature: -20-40℃
  • Channels: 8
  • Wide Power Input: 3.1V-5V
  • Supported FC System: Betaflight
  • OSD: Canvas mode
  • Bitrate: 25mbps 50mbps
  • Latency Average delay: 22ms
  • Antenna: IPEX


  • 1x HappyModel BNF Bassline 2S 2" HD Micro Quad w/ Walksnail Avatar & Nano Cam - ELRS 2.4G UART
  • 1x Bassline 2inch frame and canopy 
  • 1x Flight controller: CrazyF411 ELRS built-in UART ELRS 2.4G receiver
  • 4x EX1103 KV11000 brushless motor 
  • 1x Gemfan toothpick 2023 tri-blade propellers(4cw+4ccw) 
  • 1x Walksnail Avatar HD Mini 1S Lite Kit 
  • 1x Canopy for 14mmx14mm camera
  • 1x Screw driver 
  • 1x USB adapter