Write the following command in your terminal:

adb shell getprop

This will print all available information in the form of key/value pairs.

You can just read specific information by appending the name of a specific key to the command. For example:

adb shell getprop ro.product.model

Here are a few interesting pieces of information that you cat get:

Full Example Output

[dalvik.vm.dex2oat-Xms]: [64m]
[dalvik.vm.dex2oat-Xmx]: [512m]
[dalvik.vm.heapsize]: [384m]
[dalvik.vm.image-dex2oat-Xms]: [64m]
[dalvik.vm.image-dex2oat-Xmx]: [64m]
[dalvik.vm.isa.x86.variant]: [dalvik.vm.isa.x86.features=default]
[dalvik.vm.isa.x86_64.features]: [default]
[dalvik.vm.isa.x86_64.variant]: [x86_64]
[dalvik.vm.lockprof.threshold]: [500]
[dalvik.vm.stack-trace-file]: [/data/anr/traces.txt]
[debug.atrace.tags.enableflags]: [0]
[debug.force_rtl]: [0]
[dev.bootcomplete]: [1]
[gsm.current.phone-type]: [1]
[gsm.defaultpdpcontext.active]: [true]
[gsm.network.type]: [UMTS]
[gsm.nitz.time]: [1469106902492]
[gsm.operator.alpha]: [Android]
[gsm.operator.iso-country]: [us]
[gsm.operator.isroaming]: [false]
[gsm.operator.numeric]: [310260]
[gsm.sim.operator.alpha]: [Android]
[gsm.sim.operator.iso-country]: [us]
[gsm.sim.operator.numeric]: [310260]
[gsm.sim.state]: [READY]
[gsm.version.ril-impl]: [android reference-ril 1.0]
[init.svc.adbd]: [running]
[init.svc.bootanim]: [stopped]
[init.svc.console]: [running]
[init.svc.debuggerd]: [running]
[init.svc.debuggerd64]: [running]
[init.svc.drm]: [running]
[init.svc.fingerprintd]: [running]
[init.svc.gatekeeperd]: [running]
[init.svc.goldfish-logcat]: [stopped]
[init.svc.goldfish-setup]: [stopped]
[init.svc.healthd]: [running]
[init.svc.installd]: [running]
[init.svc.keystore]: [running]
[init.svc.lmkd]: [running]
[init.svc.logd]: [running]
[init.svc.logd-reinit]: [stopped]
[init.svc.media]: [running]
[init.svc.netd]: [running]
[init.svc.perfprofd]: [running]
[init.svc.qemu-props]: [stopped]
[init.svc.ril-daemon]: [running]
[init.svc.servicemanager]: [running]
[init.svc.surfaceflinger]: [running]
[init.svc.ueventd]: [running]
[init.svc.vold]: [running]
[init.svc.zygote]: [running]
[init.svc.zygote_secondary]: [running]
[net.bt.name]: [Android]
[net.change]: [net.dns2]
[net.dns1]: [10.0.2.3]
[net.dns2]: [10.0.2.4]
[net.eth0.dns1]: [10.0.2.3]
[net.eth0.dns2]: [10.0.2.4]
[net.eth0.gw]: [10.0.2.2]
[net.gprs.local-ip]: [10.0.2.15]
[net.hostname]: [android-5e1af924d72dc578]
[net.qtaguid_enabled]: [1]
[net.tcp.default_init_rwnd]: [60]
[persist.sys.dalvik.vm.lib.2]: [libart.so]
[persist.sys.profiler_ms]: [0]
[persist.sys.timezone]: [Europe/Vienna]
[persist.sys.usb.config]: [adb]
[qemu.gles]: [1]
[qemu.hw.mainkeys]: [0]
[qemu.sf.fake_camera]: [none]
[qemu.sf.lcd_density]: [560]
[rild.libargs]: [-d /dev/ttyS0]
[rild.libpath]: [/system/lib/libreference-ril.so]
[ro.allow.mock.location]: [0]
[ro.baseband]: [unknown]
[ro.board.platform]: []
[ro.boot.hardware]: [ranchu]
[ro.bootimage.build.date]: [Thu Jul 7 15:56:30 UTC 2016]
[ro.bootimage.build.date.utc]: [1467906990]
[ro.bootimage.build.fingerprint]: [Android/sdk_google_phone_x86_64/generic_x86_64:6.0/MASTER/3038907:userdebug/test-keys]
[ro.bootloader]: [unknown]
[ro.bootmode]: [unknown]
[ro.build.characteristics]: [emulator]
[ro.build.date]: [Thu Jul  7 15:55:30 UTC 2016]
[ro.build.date.utc]: [1467906930]
[ro.build.description]: [sdk_google_phone_x86_64-userdebug 6.0 MASTER 3038907 test-keys]
[ro.build.display.id]: [sdk_google_phone_x86_64-userdebug 6.0 MASTER 3038907 test-keys]
[ro.build.fingerprint]: [Android/sdk_google_phone_x86_64/generic_x86_64:6.0/MASTER/3038907:userdebug/test-keys]
[ro.build.flavor]: [sdk_google_phone_x86_64-userdebug]
[ro.build.host]: [vpak15.mtv.corp.google.com]
[ro.build.id]: [MASTER]
[ro.build.product]: [generic_x86_64]
[ro.build.tags]: [test-keys]
[ro.build.type]: [userdebug]
[ro.build.user]: [android-build]
[ro.build.version.all_codenames]: [REL]
[ro.build.version.base_os]: []
[ro.build.version.codename]: [REL]
[ro.build.version.incremental]: [3038907]
[ro.build.version.preview_sdk]: [0]
[ro.build.version.release]: [6.0]
[ro.build.version.sdk]: [23]
[ro.build.version.security_patch]: [2015-10-01]
[ro.com.google.locationfeatures]: [1]
[ro.config.alarm_alert]: [Alarm_Classic.ogg]
[ro.config.nocheckin]: [yes]
[ro.config.notification_sound]: [OnTheHunt.ogg]
[ro.crypto.state]: [unencrypted]
[ro.dalvik.vm.native.bridge]: [0]
[ro.debuggable]: [1]
[ro.hardware]: [ranchu]
[ro.hardware.audio.primary]: [goldfish]
[ro.kernel.android.checkjni]: [1]
[ro.kernel.android.qemud]: [1]
[ro.kernel.androidboot.hardware]: [ranchu]
[ro.kernel.clocksource]: [pit]
[ro.kernel.console]: [0]
[ro.kernel.ndns]: [2]
[ro.kernel.qemu]: [1]
[ro.kernel.qemu.gles]: [1]
[ro.opengles.version]: [131072]
[ro.product.board]: []
[ro.product.brand]: [Android]
[ro.product.cpu.abi]: [x86_64]
[ro.product.cpu.abilist]: [x86_64,x86]
[ro.product.cpu.abilist32]: [x86]
[ro.product.cpu.abilist64]: [x86_64]
[ro.product.device]: [generic_x86_64]
[ro.product.locale]: [en-US]
[ro.product.manufacturer]: [unknown]
[ro.product.model]: [Android SDK built for x86_64]
[ro.product.name]: [sdk_google_phone_x86_64]
[ro.radio.use-ppp]: [no]
[ro.revision]: [0]
[ro.runtime.firstboot]: [1469106908722]
[ro.secure]: [1]
[ro.serialno]: []
[ro.wifi.channels]: []
[ro.zygote]: [zygote64_32]
[selinux.reload_policy]: [1]
[service.bootanim.exit]: [1]
[status.battery.level]: [5]
[status.battery.level_raw]: [50]
[status.battery.level_scale]: [9]
[status.battery.state]: [Slow]
[sys.boot_completed]: [1]
[sys.sysctl.extra_free_kbytes]: [43200]
[sys.sysctl.tcp_def_init_rwnd]: [60]
[sys.usb.config]: [adb]
[sys.usb.state]: [adb]
[vold.has_adoptable]: [1]
[wlan.driver.status]: [unloaded]
[xmpp.auto-presence]: [true]