Operating System • Android 13
Camera • Maximum pixels: 2*48MP pixels
• Number of preset positions: 9
• Electronic gimbal
• 120° DFOV, 54° VFOV, 110° HFOV
• Depth of field: 1-5 meters
• 6x digital zoom
• Maximum resolution: 4K
• Maximum frame rate: 60FPS
• Video output resolution: 4K60fps, 1080P60fps
• Effective focal length: 4.2 mm
• Aperture: F/2.2-F/2.4
• Supports wide dynamic range
• High dynamic range imaging: 10-bit
• Supports auto exposure
• White balance: ATW/auto/manual
• Shutter speed: 10ms-33ms
• Minimum illumination: 0.5 lux (daytime), 0.1 lux (nighttime)
• Signal-to-noise ratio: >63 dB
• Privacy cover: Electric lens cap
• Lens calibration
• Intelligence Features
 - IntelliFocus
 - Auto Framing
 - Speaker Tracking
 - People counting
 - Picture in Picture
 - Smart Gallery (Zoom only)
• Number of cameras: 2
Speaker • Built-in 2 x 10W speakers
• Maximum sound pressure level: 112dBSPL 10W@0.1m
• Frequency response: 100-16kHz
• Sensitivity: 86dB SPL @ 1W @ 0.5 meter
• Sampling rate: 48kHz
• Sound emission angle: Forward-facing
• Total Harmonic Distortion (THD): at 10W, 1kHz, ＜5%
• Rated impedance: 4 ohms
• Maximum power: 12W
• Rated power: 10W
Microphone • Built-in 8 MEMS microphone array
• 6-meter pickup distance, 4-meter high-quality pickup distance
• Signal-to-noise ratio: 72dB
• Maximum sound pressure level: 130dBSPL (whole device), 100dBSPL (individual microphone)
• Dynamic range: 28-100dBSPL
• Sensitivity: -38dBV/pa
• Frequency response: 100-20kHz
• Sampling rate: 48K32bit
• Bit depth: 32-bit
Resolution • Portrait resolution: up to 4K30fps
• Bandwidth requirement: 10Mbps or more
Content sharing • Up to 4K15 in General Mode
• Teams: 1080p in meeting, 4K local sharing
• Zoom: 1080p
Video Codec H.264 High profile, H.264 SVC, H.264
Communication standard protocol • H.323/SIP in General Mode
• Dual stream protocol: H.239 (H.323) / BFCP (SIP)
• FECC: H.224/H.281
• H.323 protocol suit: H.245, H.225, H.235, H.241
• Gatekeeper account and SIP account
Audio Codec • ARES: 24KHZ bandwidth
• G.722.1C: 16KHz bandwidth
• G.722.1: 8KHz bandwidth
• G.722: 8KHz bandwidth
• G.711 (PCMA/PCMU): 4KHz bandwidth
• G.729: 8KHz bandwidth
Network Protocol • Wi-Fi 6
 - 2.4G & 5G dual-band, 802.11a/b/g/n/ac/ax
 - 2x2 MIMO
• Bluetooth 5.0
• TCP/IP (IPv4/IPv6), DHCP/static IP
• HTTPS secure web access
Configuration Management • Automatic configuration via web page/display/AutoP
• Firmware upgrade, factory reset
• Configuration import and export
• System log export
Device Management • Yealink Https Web Portal
• Yealink Device Management Platform
• Yealink Management Cloud Service
• Microsoft Device Management Platform(Microsoft Teams Admin Center/Intune)
• Zoom Device Management
Installation • Wall mount
• Use TV-Clip Mount
• Place on the desktop
Ports • 1x USB2.0 USB-A port
• 2x USB-C port
• 1x Ethernet port
• 1x Yealink VCH port (RJ-45)
• 1x 3.5mm Line-in & Line-out port
• 1x Power port
• 1x Security lock slot
• 1x Reset slot
• 2x HDMI-out
Package • MeetingBar A40
• HDMI cable x2
• Network cable x1
• TV-Clip Mount x1
• Wall Mount x1
• Optional Package
 - A40-010: A40+VCR11
 - A40-031: A40+CTP25
Environmental Factor • Operating humidity: 10 - 95%
• Operating temperature: 0 - 40°C
Dimensions and weight (W × D × H) • MeetingBar A40: 650 × 62 × 80 mm
• N.W/CTN: 5.540 kg
• G.W/CTN: 6.086kg