Aesthetic features
Size and Dimensions	40 x 40 x 13.3 mm	40.4 * 100.5 * 101.6 millimeter (mm)
Product Weight	43 gram (g)	310 gram (g)
Body Material	-	Plastic
Lighting	-	No
Other Design Features	-	Has plastic strap on the back for attaching to other objects

Body material and design

Body material and design
Compatible SIM Card Types	No	-
Other Body Features		-

Display

Display
Display Technology		-
Screen Size	0.79 inch	-
Display Resolution		-
Display Technical Details	Monochrome display (black and white) / Non-touch	-

Operating system or software platform

Operating system or software platform
OS Version	Proprietary OS compatible with Android and iOS	-

Audio features

Audio features
Speaker Type	No	-

Battery capacity and performance

Battery capacity and performance
Battery Type and Capacity	Battery rechargeable by sunlight	-
Battery Standby Time	Up to 22 hours (GPS on) / Up to 21 days (up to 51 days if used 3 hours daily in outdoor light conditions)	-

Capabilities

Capabilities
Smart Sensors	Optical heart rate sensor with SpO2 (blood oxygen level) calculation capability, Accelerometer, Compass, Air pressure sensor	-
Messaging Method	Received notification alerts / Display text messages	-
Additional Features	-	Omnidirectional sound playback / 240 minutes of use with only 20 minutes of charge

Network connections

Network connections
Communication Technologies	No cellular connectivity	-

Connections

Connections
Wireless Network Type	No	-
Bluetooth Support	Yes with ANT+ support	Yes
GPS Support	Yes, with GPS, GLONASS, GALILEO	-
NFC Support	No	No
USB Connections Type	No, charges via proprietary magnetic port	-
Controller Details	-	Bluetooth pairing button / Multi-function button
Available Bluetooth Version	-
Operational Range	-	10 meter (m)

Miscellaneous

Miscellaneous
Available Color Options	Black, Blue, Green	-
Global Price Range		-

Ports and features

Ports and features
Voice Call Support	-	Yes
Hi-Res Support	-	No
IPX Resistance	-	IP67 (Dust and water resistant up to 1 meter deep for up to 30 minutes)
Audio Input Jack Support	-	No
RCA Input Port	-	No
Optical Input	-	No
Coaxial Port	-	No
TF Card Support	-	No
USB Port	-	No
Headphone Output Port	-	No
Microphone Input Port	-	No
Internal Microphone	-	Yes

Additional features and options

Additional features and options
Software Features	-	Dedicated Marshall app compatible with Android and iOS
LED Status Indicator	-	Yes

Power supply and battery life

Main features

Technical features

Technical features
Driver Technical Specifications	-	One 50.8mm driver / Class D amplifier / Two passive radiators
Sound Sensitivity (dB)	-	82 decibel (db)
Frequency Response Range	-	100-20000 hertz (hz)