Caliber Earbuds by ISOTunes Sport


A Bluetooth shooting earbud that packs a big punch in a little package. The completely cordless design allows you to move freely. 32dB SNR. IP67 durability for dust, sweat and waterproof protection. Up to 16 hour battery life with 2 full additional charges stored in the rechargeable case. Automatic Power Off after 2 hours. Bluetooth 5.2 connects, and duel-connects, devices up to 9+ metres. Background Noise-Reducing Microphone for crisp, clear communication in loud environments.


Product Code - Bisley ITCA


  • Standard Delivery (2-3 working days): £4.99
  • Express Delivery (next working day): £7.99
  • Collect In-Store (Sportarm, Prince's Street, Dorchester, Dorset DT1 1TW): FREE DELIVERY
  • All orders over £150: FREE DELIVERY


All orders will be dispatched and delivered to the delivery address as shown in your order confirmation.

For deliveries outside the UK, please contact our dedicated sales team for a delivery quote, either by phone ( 01305 268001 ) or email.


We accept the following payment cards: MasterCard, Visa, Visa Debit and Maestro. Payment will be debited from your account upon receipt of your order. Debit of the payment does not mean acceptance of the offer and conclusion of the contract, therefore your payment will be refunded if the goods are not dispatched to you and the sale contract is not concluded. You are responsible for confirming that you are the legitimate holder of the credit/debit card and that your details are correct. All cardholders are subject to validation checks and authorisation by the card issuer. If the issuer of your payment card refuses to authorise payment to us, we will not be able to process your order and a message will appear to say that the transaction cannot be processed.

We take all reasonable care to make our Online Shop as secure as we can. All payment card transactions made through our Online Shop are processed through Worldpay. We do not hold your payment card details on our server.

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