Best Buy offers the Hello Kitty Wireless Bluetooth Speaker in White, model no. KT4557, for $17.99. Opt for in-store pickup to avoid the $2.99 shipping fee. That's $12 under the lowest shipped price we could find elsewhere. It features a 4-watt amplified speaker, 2.4GHz wireless frequency rate, and USB.
Sears offers the Monster ClarityHD Precision Micro Bluetooth Speaker 100 in Silver, model no. AI CLY MBT 100, for $49.99. Plus, Shop Your Way Max members bag free shipping. (Not a member? It's free to sign up for a 90-day trial; otherwise, shipping adds $6.50. Free in-store pickup is also available.) That's the lowest total price we could find by $4, although we saw it for $20 less (via pickup) last summer. It's compatible with most Bluetooth 2.0 devices, has a range of up to 33 feet, and features up to five hours of play time.