(Telecompaper) Amazon has launched a range of new voice-activated Echo devices at a hardware event in Seattle, including a connected amplifier, camera, clock and microwave, while introducing revamped versions of its Echo Show smart home hub and Echo Dot speakers. The new smart home lineup includes a USD 60 Amazon Basics microwave with Alexa voice controls and Dash button functionality, a USD 180 Ring security camera, a USD 50 Echo Auto hands-free dashcam device, a USD 30 wall clock, a USD 25 Echo Smart plug and a USD 300 connected amplifier called Echo Link Amp with a built-in 60W 2-channel amplifier to improve sound quality.