KST-900 Bluetooth Stereo Headset, For iPad, iPhone, Galaxy, Huawei, Xiaomi, LG, HTC and Other Smart Phones Type-Wireless Presenter and four high-speed USB3

and four high-speed USB3

manual zoom

Smooth rounded edges effectively protect the screen and lens

General Compatible with Lenovo:  G40

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KST-900 Bluetooth Stereo Headset, For iPad, iPhone, Galaxy, Huawei, Xiaomi, LG, HTC and Other Smart Phones Type-Wireless Presenter and four high-speed USB31. Brand new 2. Ear pads to keep your ears comfortable 3. Adjustable headband for different needs 3. Compatible with most Bluetooth devices, tablets and smart phones etc Specification: General Model KST 900 Types Headphone (no mic) Bluetooth Version V3. 0 + EDR Protocol A2DP, HSP, HFP, AVRCP Impedance 32ohm Transmission Distance Up to 10m Distortion <=0. 5% at 1kHz Power 30mW Battery Battery Types Li ion Battery Capacity 300mAh Charging Time 2 3 hours