Meritline offers the iKANOO BT001 Portable Bluetooth Speaker for $15.95. Coupon code "MLCKA22QNL1" cuts it to $12.95. With free shipping, that's $2 below our mention from last month and the lowest total price we've seen. (It's also a current price low by $3.) It features a built-in speakerphone for answering incoming calls and a frequency range of 90Hz to 20kHz.