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Tunenge via Amazon [amazon.com] has for Prime Members: TUNENGE S15 Rechargeable 650 Lumen Keychain Flashlight (Black) on sale for $16.59 – 50% off when you apply promo code EWDOXKRG at checkout = $8.29. Shipping is free.

Note: Amazon promo codes don’t always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.