KZ S1D TWS Wireless Headphones Mini Smart Bluetooth 5.0 In-Ear Headset with Mic Pick Up Automatic Pairing Handsfree Earbuds

brings natural and clear sound. [Two tapes of speakers available] S1 Dynamic & Balanced armature BT headphones, the performance innovation is comprehensively improved. S1D independent high-frequency dynamic unit, with its inherent crisp background and sensitive response, interprets the true sound of different vocal instrumental music. [With microphone] Ensures high-definition calls even in noisy environments. It can help you to make calls even while driving. The left and right headphones can be used individually or in pairs to meet your different usage. [Mini and lightweight] Mini headphones are small and compact, and the design of the charging case makes it easier to store portable charging headphones. The body is thin and light, suitable for long-term wear. Note: The S1 headphones are green, gray, dynamic & balanced armature speakers. The S1D headphones are black, white, dynamic speakers. Specifications: Brand: KZ Model: S1, S1D (optional) Horn: dynamic, dynamic & balanced armature speakers (optional) Product Type: Wireless Headset BT Version: 5.0 With Microphone: Yes Support Profiles: A2DP/AVRCP/HSP Operation Distance: Up to 10m (Barrier-free distance) Frequency Response: 20 – 20000 Hz Impedance: 32Ω Headphones battery capacity: 40mAh Storage box battery capacity: 300mAh Talk Time / Music Play Time: about 3 hours Charging compartment standby time: ≥100 H Charging box size: 7.5 * 5 * 4cm / 2.95 * 1.97 * 1.57in Headphones box weight: 52g / 1.83oz Package size: 9.6 * 8.2* 4.4cm / 3.78 * 3.23 * 1.73in Package weight: 147g / 5.19oz Package List: 1 * Pairs of Headphones 1 * Charging Box 1 * Data line 2 pairs * earplugs 1 * User Manual (English & Chinese)