Amazon Echo has already taken over almost half the online speaker market

Amazon has been introducing its own products to take a bigger share of the market it already controls, and the strategy is working. Of speakers sold on Amazon, the Amazon Echo accounts for 45 percent. Bose is next with just 16 percent. Those Amazon sales cover 89 percent of all online speaker sales. A new report from the data analytics group 1010data analyzed Amazon's private label products.