Please include the specifications of the order product when filling up your order. On the lower part portion of product image, then click "add note" to specify your prefer color, memory and specification.
(ex. Vivo V15, 128gb, 6gb RAM, Coral Red) (ex. BT HF PRO SY BT1607, Red) 
Features
* Speaker Function
Supports Speakerphone, Built-in Microphone,
to bring clear calls for you, it's verypefect either with single or multiplayer for phone calls or video chat
* Pure music, perfect to enjoy
high-fidelity sound, stereo speakers, built-in resonance radiator device, equipped with high-efficiency power amplifier, super-low frequency dy